Home / 321,780-482,704.56-144,366.24

Finding the Fourth Proportional to 321,780, 482,704.56 and 144,366.24

Calculator

Solution

The fourth proportional to 321,780, 482,704.56 and 144,366.24 is: 216,564.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,780 : 482,704.56 = 144,366.24 : x
  2. Step 2: Convert to fraction form
    321,780/482,704.56 = 144,366.24/x
  3. Step 3: Cross multiply
    321,780x = 482,704.56 × 144,366.24
  4. Step 4: Simplify right side
    321,780x = 69,686,242,358.05
  5. Step 5: Solve for x
    x = 69,686,242,358.05/321,780
  6. Step 6: Final answer
    x = 216,564.87

Related Problems

Find fourth proportional to 160,890, 241,352.28 and 72,183.12
Half scale
Find fourth proportional to 643,560, 965,409.12 and 288,732.48
Double scale
Find fourth proportional to 321,781, 482,706.06 and 144,367.24
Similar ratio
Find fourth proportional to 482,670, 724,056.84 and 216,549.36
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.