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Finding the Fourth Proportional to 356,778.25, 535,139.45 and 100,600.47

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Solution

The fourth proportional to 356,778.25, 535,139.45 and 100,600.47 is: 150,892.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,778.25 : 535,139.45 = 100,600.47 : x
  2. Step 2: Convert to fraction form
    356,778.25/535,139.45 = 100,600.47/x
  3. Step 3: Cross multiply
    356,778.25x = 535,139.45 × 100,600.47
  4. Step 4: Simplify right side
    356,778.25x = 53,835,280,854.47
  5. Step 5: Solve for x
    x = 53,835,280,854.47/356,778.25
  6. Step 6: Final answer
    x = 150,892.83

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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.