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Finding the Fourth Proportional to 393,960.04, 543,601.54 and 224,197

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Solution

The fourth proportional to 393,960.04, 543,601.54 and 224,197 is: 309,355.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,960.04 : 543,601.54 = 224,197 : x
  2. Step 2: Convert to fraction form
    393,960.04/543,601.54 = 224,197/x
  3. Step 3: Cross multiply
    393,960.04x = 543,601.54 × 224,197
  4. Step 4: Simplify right side
    393,960.04x = 121,873,834,463.38
  5. Step 5: Solve for x
    x = 121,873,834,463.38/393,960.04
  6. Step 6: Final answer
    x = 309,355.83

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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.