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Finding the Fourth Proportional to 230,468.11, 345,702.15 and 72,708.87

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Solution

The fourth proportional to 230,468.11, 345,702.15 and 72,708.87 is: 109,063.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,468.11 : 345,702.15 = 72,708.87 : x
  2. Step 2: Convert to fraction form
    230,468.11/345,702.15 = 72,708.87/x
  3. Step 3: Cross multiply
    230,468.11x = 345,702.15 × 72,708.87
  4. Step 4: Simplify right side
    230,468.11x = 25,135,612,683.07
  5. Step 5: Solve for x
    x = 25,135,612,683.07/230,468.11
  6. Step 6: Final answer
    x = 109,063.30

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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.