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Finding the Fourth Proportional to 318,599.92, 439,664.52 and 175,356.88

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Solution

The fourth proportional to 318,599.92, 439,664.52 and 175,356.88 is: 241,990.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,599.92 : 439,664.52 = 175,356.88 : x
  2. Step 2: Convert to fraction form
    318,599.92/439,664.52 = 175,356.88/x
  3. Step 3: Cross multiply
    318,599.92x = 439,664.52 × 175,356.88
  4. Step 4: Simplify right side
    318,599.92x = 77,098,198,473.90
  5. Step 5: Solve for x
    x = 77,098,198,473.90/318,599.92
  6. Step 6: Final answer
    x = 241,990.64

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.