Home / 444.60-666.78-156

Finding the Fourth Proportional to 444.60, 666.78 and 156

Calculator

Solution

The fourth proportional to 444.60, 666.78 and 156 is: 233.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    444.60 : 666.78 = 156 : x
  2. Step 2: Convert to fraction form
    444.60/666.78 = 156/x
  3. Step 3: Cross multiply
    444.60x = 666.78 × 156
  4. Step 4: Simplify right side
    444.60x = 104,017.68
  5. Step 5: Solve for x
    x = 104,017.68/444.60
  6. Step 6: Final answer
    x = 233.96

Related Problems

Find fourth proportional to 222.30, 333.39 and 78
Half scale
Find fourth proportional to 889.20, 1,333.56 and 312
Double scale
Find fourth proportional to 445.60, 668.28 and 157
Similar ratio
Find fourth proportional to 666.90, 1,000.17 and 234
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.