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Finding the Fourth Proportional to 557,353.16, 835,766.05 and 215,956.38

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Solution

The fourth proportional to 557,353.16, 835,766.05 and 215,956.38 is: 323,832.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,353.16 : 835,766.05 = 215,956.38 : x
  2. Step 2: Convert to fraction form
    557,353.16/835,766.05 = 215,956.38/x
  3. Step 3: Cross multiply
    557,353.16x = 835,766.05 × 215,956.38
  4. Step 4: Simplify right side
    557,353.16x = 180,489,010,684.90
  5. Step 5: Solve for x
    x = 180,489,010,684.90/557,353.16
  6. Step 6: Final answer
    x = 323,832.40

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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.