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Finding the Fourth Proportional to 658,503.71, 987,849.71 and 203,133.41

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Solution

The fourth proportional to 658,503.71, 987,849.71 and 203,133.41 is: 304,729.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,503.71 : 987,849.71 = 203,133.41 : x
  2. Step 2: Convert to fraction form
    658,503.71/987,849.71 = 203,133.41/x
  3. Step 3: Cross multiply
    658,503.71x = 987,849.71 × 203,133.41
  4. Step 4: Simplify right side
    658,503.71x = 200,665,274,204.90
  5. Step 5: Solve for x
    x = 200,665,274,204.90/658,503.71
  6. Step 6: Final answer
    x = 304,729.15

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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.