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Finding the Fourth Proportional to 487,153.79, 730,731.04 and 132,167.78

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Solution

The fourth proportional to 487,153.79, 730,731.04 and 132,167.78 is: 198,251.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,153.79 : 730,731.04 = 132,167.78 : x
  2. Step 2: Convert to fraction form
    487,153.79/730,731.04 = 132,167.78/x
  3. Step 3: Cross multiply
    487,153.79x = 730,731.04 × 132,167.78
  4. Step 4: Simplify right side
    487,153.79x = 96,579,099,333.89
  5. Step 5: Solve for x
    x = 96,579,099,333.89/487,153.79
  6. Step 6: Final answer
    x = 198,251.77

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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.