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Finding the Fourth Proportional to 224,287.11, 309,515.18 and 123,685.11

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Solution

The fourth proportional to 224,287.11, 309,515.18 and 123,685.11 is: 170,684.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    224,287.11 : 309,515.18 = 123,685.11 : x
  2. Step 2: Convert to fraction form
    224,287.11/309,515.18 = 123,685.11/x
  3. Step 3: Cross multiply
    224,287.11x = 309,515.18 × 123,685.11
  4. Step 4: Simplify right side
    224,287.11x = 38,282,418,466.54
  5. Step 5: Solve for x
    x = 38,282,418,466.54/224,287.11
  6. Step 6: Final answer
    x = 170,684.88

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1.5x scale

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.