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Finding the Fourth Proportional to 230,418.61, 345,595.10 and 72,626.56

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Solution

The fourth proportional to 230,418.61, 345,595.10 and 72,626.56 is: 108,929.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,418.61 : 345,595.10 = 72,626.56 : x
  2. Step 2: Convert to fraction form
    230,418.61/345,595.10 = 72,626.56/x
  3. Step 3: Cross multiply
    230,418.61x = 345,595.10 × 72,626.56
  4. Step 4: Simplify right side
    230,418.61x = 25,099,381,719.45
  5. Step 5: Solve for x
    x = 25,099,381,719.45/230,418.61
  6. Step 6: Final answer
    x = 108,929.49

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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.