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Finding the Fourth Proportional to 230,059.20, 345,020.76 and 103,626.30

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Solution

The fourth proportional to 230,059.20, 345,020.76 and 103,626.30 is: 155,408.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,059.20 : 345,020.76 = 103,626.30 : x
  2. Step 2: Convert to fraction form
    230,059.20/345,020.76 = 103,626.30/x
  3. Step 3: Cross multiply
    230,059.20x = 345,020.76 × 103,626.30
  4. Step 4: Simplify right side
    230,059.20x = 35,753,224,781.99
  5. Step 5: Solve for x
    x = 35,753,224,781.99/230,059.20
  6. Step 6: Final answer
    x = 155,408.80

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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.