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Finding the Fourth Proportional to 361,690.08, 499,129.76 and 200,545.20

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Solution

The fourth proportional to 361,690.08, 499,129.76 and 200,545.20 is: 276,750.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,690.08 : 499,129.76 = 200,545.20 : x
  2. Step 2: Convert to fraction form
    361,690.08/499,129.76 = 200,545.20/x
  3. Step 3: Cross multiply
    361,690.08x = 499,129.76 × 200,545.20
  4. Step 4: Simplify right side
    361,690.08x = 100,098,077,545.15
  5. Step 5: Solve for x
    x = 100,098,077,545.15/361,690.08
  6. Step 6: Final answer
    x = 276,750.96

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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.