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Finding the Fourth Proportional to 215,250.62, 322,862.86 and 80,288.67

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Solution

The fourth proportional to 215,250.62, 322,862.86 and 80,288.67 is: 120,428.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,250.62 : 322,862.86 = 80,288.67 : x
  2. Step 2: Convert to fraction form
    215,250.62/322,862.86 = 80,288.67/x
  3. Step 3: Cross multiply
    215,250.62x = 322,862.86 × 80,288.67
  4. Step 4: Simplify right side
    215,250.62x = 25,922,229,116.79
  5. Step 5: Solve for x
    x = 25,922,229,116.79/215,250.62
  6. Step 6: Final answer
    x = 120,428.13

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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.