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Finding the Fourth Proportional to 658,808.43, 988,202.27 and 209,522.81

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Solution

The fourth proportional to 658,808.43, 988,202.27 and 209,522.81 is: 314,280.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,808.43 : 988,202.27 = 209,522.81 : x
  2. Step 2: Convert to fraction form
    658,808.43/988,202.27 = 209,522.81/x
  3. Step 3: Cross multiply
    658,808.43x = 988,202.27 × 209,522.81
  4. Step 4: Simplify right side
    658,808.43x = 207,050,910,470.15
  5. Step 5: Solve for x
    x = 207,050,910,470.15/658,808.43
  6. Step 6: Final answer
    x = 314,280.91

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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.