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Finding the Fourth Proportional to 149,358.20, 224,037.30 and 137,953.40

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Solution

The fourth proportional to 149,358.20, 224,037.30 and 137,953.40 is: 206,930.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,358.20 : 224,037.30 = 137,953.40 : x
  2. Step 2: Convert to fraction form
    149,358.20/224,037.30 = 137,953.40/x
  3. Step 3: Cross multiply
    149,358.20x = 224,037.30 × 137,953.40
  4. Step 4: Simplify right side
    149,358.20x = 30,906,707,261.82
  5. Step 5: Solve for x
    x = 30,906,707,261.82/149,358.20
  6. Step 6: Final answer
    x = 206,930.10

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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.