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Finding the Fourth Proportional to 660,253.68, 990,446.13 and 239,562.36

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Solution

The fourth proportional to 660,253.68, 990,446.13 and 239,562.36 is: 359,367.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,253.68 : 990,446.13 = 239,562.36 : x
  2. Step 2: Convert to fraction form
    660,253.68/990,446.13 = 239,562.36/x
  3. Step 3: Cross multiply
    660,253.68x = 990,446.13 × 239,562.36
  4. Step 4: Simplify right side
    660,253.68x = 237,273,612,355.67
  5. Step 5: Solve for x
    x = 237,273,612,355.67/660,253.68
  6. Step 6: Final answer
    x = 359,367.35

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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.