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Finding the Fourth Proportional to 393,218.73, 588,559.43 and 203,417.73

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Solution

The fourth proportional to 393,218.73, 588,559.43 and 203,417.73 is: 304,470.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,218.73 : 588,559.43 = 203,417.73 : x
  2. Step 2: Convert to fraction form
    393,218.73/588,559.43 = 203,417.73/x
  3. Step 3: Cross multiply
    393,218.73x = 588,559.43 × 203,417.73
  4. Step 4: Simplify right side
    393,218.73x = 119,723,423,220.69
  5. Step 5: Solve for x
    x = 119,723,423,220.69/393,218.73
  6. Step 6: Final answer
    x = 304,470.30

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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.