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Finding the Fourth Proportional to 352,910.97, 529,233.97 and 128,215.89

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Solution

The fourth proportional to 352,910.97, 529,233.97 and 128,215.89 is: 192,275.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,910.97 : 529,233.97 = 128,215.89 : x
  2. Step 2: Convert to fraction form
    352,910.97/529,233.97 = 128,215.89/x
  3. Step 3: Cross multiply
    352,910.97x = 529,233.97 × 128,215.89
  4. Step 4: Simplify right side
    352,910.97x = 67,856,204,481.78
  5. Step 5: Solve for x
    x = 67,856,204,481.78/352,910.97
  6. Step 6: Final answer
    x = 192,275.70

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1.5x scale

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.