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Finding the Fourth Proportional to 230,060.10, 345,101.85 and 72,290.10

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Solution

The fourth proportional to 230,060.10, 345,101.85 and 72,290.10 is: 108,438.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,060.10 : 345,101.85 = 72,290.10 : x
  2. Step 2: Convert to fraction form
    230,060.10/345,101.85 = 72,290.10/x
  3. Step 3: Cross multiply
    230,060.10x = 345,101.85 × 72,290.10
  4. Step 4: Simplify right side
    230,060.10x = 24,947,447,246.69
  5. Step 5: Solve for x
    x = 24,947,447,246.69/230,060.10
  6. Step 6: Final answer
    x = 108,438.83

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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.