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Finding the Fourth Proportional to 570,452.40, 855,612.72 and 149,761.20

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Solution

The fourth proportional to 570,452.40, 855,612.72 and 149,761.20 is: 224,624.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,452.40 : 855,612.72 = 149,761.20 : x
  2. Step 2: Convert to fraction form
    570,452.40/855,612.72 = 149,761.20/x
  3. Step 3: Cross multiply
    570,452.40x = 855,612.72 × 149,761.20
  4. Step 4: Simplify right side
    570,452.40x = 128,137,587,682.46
  5. Step 5: Solve for x
    x = 128,137,587,682.46/570,452.40
  6. Step 6: Final answer
    x = 224,624.50

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Similar ratio
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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.