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Finding the Fourth Proportional to 219,524.32, 329,060.52 and 86,350.64

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Solution

The fourth proportional to 219,524.32, 329,060.52 and 86,350.64 is: 129,437.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,524.32 : 329,060.52 = 86,350.64 : x
  2. Step 2: Convert to fraction form
    219,524.32/329,060.52 = 86,350.64/x
  3. Step 3: Cross multiply
    219,524.32x = 329,060.52 × 86,350.64
  4. Step 4: Simplify right side
    219,524.32x = 28,414,586,500.73
  5. Step 5: Solve for x
    x = 28,414,586,500.73/219,524.32
  6. Step 6: Final answer
    x = 129,437.08

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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.