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Finding the Fourth Proportional to 658,491.40, 988,125.90 and 237,712.60

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Solution

The fourth proportional to 658,491.40, 988,125.90 and 237,712.60 is: 356,709.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,491.40 : 988,125.90 = 237,712.60 : x
  2. Step 2: Convert to fraction form
    658,491.40/988,125.90 = 237,712.60/x
  3. Step 3: Cross multiply
    658,491.40x = 988,125.90 × 237,712.60
  4. Step 4: Simplify right side
    658,491.40x = 234,889,976,816.34
  5. Step 5: Solve for x
    x = 234,889,976,816.34/658,491.40
  6. Step 6: Final answer
    x = 356,709.26

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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.