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Finding the Fourth Proportional to 230,162.76, 345,243.36 and 103,654.80

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Solution

The fourth proportional to 230,162.76, 345,243.36 and 103,654.80 is: 155,481.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,162.76 : 345,243.36 = 103,654.80 : x
  2. Step 2: Convert to fraction form
    230,162.76/345,243.36 = 103,654.80/x
  3. Step 3: Cross multiply
    230,162.76x = 345,243.36 × 103,654.80
  4. Step 4: Simplify right side
    230,162.76x = 35,786,131,432.13
  5. Step 5: Solve for x
    x = 35,786,131,432.13/230,162.76
  6. Step 6: Final answer
    x = 155,481.85

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1.5x scale

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.