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Finding the Fourth Proportional to 215,752.78, 297,748.92 and 120,260.17

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Solution

The fourth proportional to 215,752.78, 297,748.92 and 120,260.17 is: 165,964.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,752.78 : 297,748.92 = 120,260.17 : x
  2. Step 2: Convert to fraction form
    215,752.78/297,748.92 = 120,260.17/x
  3. Step 3: Cross multiply
    215,752.78x = 297,748.92 × 120,260.17
  4. Step 4: Simplify right side
    215,752.78x = 35,807,335,736.52
  5. Step 5: Solve for x
    x = 35,807,335,736.52/215,752.78
  6. Step 6: Final answer
    x = 165,964.66

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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.