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Finding the Fourth Proportional to 150,479.92, 207,650.84 and 82,486

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Solution

The fourth proportional to 150,479.92, 207,650.84 and 82,486 is: 113,824.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,479.92 : 207,650.84 = 82,486 : x
  2. Step 2: Convert to fraction form
    150,479.92/207,650.84 = 82,486/x
  3. Step 3: Cross multiply
    150,479.92x = 207,650.84 × 82,486
  4. Step 4: Simplify right side
    150,479.92x = 17,128,287,188.24
  5. Step 5: Solve for x
    x = 17,128,287,188.24/150,479.92
  6. Step 6: Final answer
    x = 113,824.40

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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.