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Finding the Fourth Proportional to 557,273.32, 835,646.49 and 215,876.66

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Solution

The fourth proportional to 557,273.32, 835,646.49 and 215,876.66 is: 323,712.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,273.32 : 835,646.49 = 215,876.66 : x
  2. Step 2: Convert to fraction form
    557,273.32/835,646.49 = 215,876.66/x
  3. Step 3: Cross multiply
    557,273.32x = 835,646.49 × 215,876.66
  4. Step 4: Simplify right side
    557,273.32x = 180,396,569,023.69
  5. Step 5: Solve for x
    x = 180,396,569,023.69/557,273.32
  6. Step 6: Final answer
    x = 323,712.91

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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.