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Finding the Fourth Proportional to 560,569.68, 840,354.52 and 205,500.80

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Solution

The fourth proportional to 560,569.68, 840,354.52 and 205,500.80 is: 308,067.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,569.68 : 840,354.52 = 205,500.80 : x
  2. Step 2: Convert to fraction form
    560,569.68/840,354.52 = 205,500.80/x
  3. Step 3: Cross multiply
    560,569.68x = 840,354.52 × 205,500.80
  4. Step 4: Simplify right side
    560,569.68x = 172,693,526,143.62
  5. Step 5: Solve for x
    x = 172,693,526,143.62/560,569.68
  6. Step 6: Final answer
    x = 308,067.90

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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.