Home / 452-678.16-148

Finding the Fourth Proportional to 452, 678.16 and 148

Calculator

Solution

The fourth proportional to 452, 678.16 and 148 is: 222.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    452 : 678.16 = 148 : x
  2. Step 2: Convert to fraction form
    452/678.16 = 148/x
  3. Step 3: Cross multiply
    452x = 678.16 × 148
  4. Step 4: Simplify right side
    452x = 100,367.68
  5. Step 5: Solve for x
    x = 100,367.68/452
  6. Step 6: Final answer
    x = 222.05

Related Problems

Find fourth proportional to 226, 339.08 and 74
Half scale
Find fourth proportional to 904, 1,356.32 and 296
Double scale
Find fourth proportional to 453, 679.66 and 149
Similar ratio
Find fourth proportional to 678, 1,017.24 and 222
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.