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Finding the Fourth Proportional to 402,520.92, 603,744.36 and 136,251

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Solution

The fourth proportional to 402,520.92, 603,744.36 and 136,251 is: 204,363.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,520.92 : 603,744.36 = 136,251 : x
  2. Step 2: Convert to fraction form
    402,520.92/603,744.36 = 136,251/x
  3. Step 3: Cross multiply
    402,520.92x = 603,744.36 × 136,251
  4. Step 4: Simplify right side
    402,520.92x = 82,260,772,794.36
  5. Step 5: Solve for x
    x = 82,260,772,794.36/402,520.92
  6. Step 6: Final answer
    x = 204,363.97

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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.