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Finding the Fourth Proportional to 487,114.96, 730,673.08 and 132,128.72

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Solution

The fourth proportional to 487,114.96, 730,673.08 and 132,128.72 is: 198,193.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,114.96 : 730,673.08 = 132,128.72 : x
  2. Step 2: Convert to fraction form
    487,114.96/730,673.08 = 132,128.72/x
  3. Step 3: Cross multiply
    487,114.96x = 730,673.08 × 132,128.72
  4. Step 4: Simplify right side
    487,114.96x = 96,542,898,798.86
  5. Step 5: Solve for x
    x = 96,542,898,798.86/487,114.96
  6. Step 6: Final answer
    x = 198,193.25

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Similar ratio
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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.