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Finding the Fourth Proportional to 224,171.28, 309,358.44 and 123,572.88

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Solution

The fourth proportional to 224,171.28, 309,358.44 and 123,572.88 is: 170,531.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    224,171.28 : 309,358.44 = 123,572.88 : x
  2. Step 2: Convert to fraction form
    224,171.28/309,358.44 = 123,572.88/x
  3. Step 3: Cross multiply
    224,171.28x = 309,358.44 × 123,572.88
  4. Step 4: Simplify right side
    224,171.28x = 38,228,313,383.11
  5. Step 5: Solve for x
    x = 38,228,313,383.11/224,171.28
  6. Step 6: Final answer
    x = 170,531.72

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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.