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Finding the Fourth Proportional to 361,634.30, 499,071.15 and 200,479.13

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Solution

The fourth proportional to 361,634.30, 499,071.15 and 200,479.13 is: 276,669.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,634.30 : 499,071.15 = 200,479.13 : x
  2. Step 2: Convert to fraction form
    361,634.30/499,071.15 = 200,479.13/x
  3. Step 3: Cross multiply
    361,634.30x = 499,071.15 × 200,479.13
  4. Step 4: Simplify right side
    361,634.30x = 100,053,349,960.10
  5. Step 5: Solve for x
    x = 100,053,349,960.10/361,634.30
  6. Step 6: Final answer
    x = 276,669.97

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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.