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Finding the Fourth Proportional to 230,660.90, 345,926.55 and 72,937.70

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Solution

The fourth proportional to 230,660.90, 345,926.55 and 72,937.70 is: 109,386.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,660.90 : 345,926.55 = 72,937.70 : x
  2. Step 2: Convert to fraction form
    230,660.90/345,926.55 = 72,937.70/x
  3. Step 3: Cross multiply
    230,660.90x = 345,926.55 × 72,937.70
  4. Step 4: Simplify right side
    230,660.90x = 25,231,086,925.94
  5. Step 5: Solve for x
    x = 25,231,086,925.94/230,660.90
  6. Step 6: Final answer
    x = 109,386.06

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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.