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Finding the Fourth Proportional to 425,250.72, 637,684.92 and 125,626.86

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Solution

The fourth proportional to 425,250.72, 637,684.92 and 125,626.86 is: 188,383.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,250.72 : 637,684.92 = 125,626.86 : x
  2. Step 2: Convert to fraction form
    425,250.72/637,684.92 = 125,626.86/x
  3. Step 3: Cross multiply
    425,250.72x = 637,684.92 × 125,626.86
  4. Step 4: Simplify right side
    425,250.72x = 80,110,354,168.95
  5. Step 5: Solve for x
    x = 80,110,354,168.95/425,250.72
  6. Step 6: Final answer
    x = 188,383.82

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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.