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Finding the Fourth Proportional to 557,354.16, 835,767.55 and 215,957.38

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Solution

The fourth proportional to 557,354.16, 835,767.55 and 215,957.38 is: 323,833.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,354.16 : 835,767.55 = 215,957.38 : x
  2. Step 2: Convert to fraction form
    557,354.16/835,767.55 = 215,957.38/x
  3. Step 3: Cross multiply
    557,354.16x = 835,767.55 × 215,957.38
  4. Step 4: Simplify right side
    557,354.16x = 180,490,170,387.02
  5. Step 5: Solve for x
    x = 180,490,170,387.02/557,354.16
  6. Step 6: Final answer
    x = 323,833.90

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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.