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Finding the Fourth Proportional to 215,086.40, 296,819.52 and 119,602.88

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Solution

The fourth proportional to 215,086.40, 296,819.52 and 119,602.88 is: 165,052.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,086.40 : 296,819.52 = 119,602.88 : x
  2. Step 2: Convert to fraction form
    215,086.40/296,819.52 = 119,602.88/x
  3. Step 3: Cross multiply
    215,086.40x = 296,819.52 × 119,602.88
  4. Step 4: Simplify right side
    215,086.40x = 35,500,469,432.22
  5. Step 5: Solve for x
    x = 35,500,469,432.22/215,086.40
  6. Step 6: Final answer
    x = 165,052.13

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1.5x scale

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.