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Finding the Fourth Proportional to 218,414.17, 327,668.03 and 123,689.12

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Solution

The fourth proportional to 218,414.17, 327,668.03 and 123,689.12 is: 185,560.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,414.17 : 327,668.03 = 123,689.12 : x
  2. Step 2: Convert to fraction form
    218,414.17/327,668.03 = 123,689.12/x
  3. Step 3: Cross multiply
    218,414.17x = 327,668.03 × 123,689.12
  4. Step 4: Simplify right side
    218,414.17x = 40,528,970,483.56
  5. Step 5: Solve for x
    x = 40,528,970,483.56/218,414.17
  6. Step 6: Final answer
    x = 185,560.17

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1.5x scale

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.