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Finding the Fourth Proportional to 234,103.80, 351,168.66 and 99,190.20

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Solution

The fourth proportional to 234,103.80, 351,168.66 and 99,190.20 is: 148,790.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,103.80 : 351,168.66 = 99,190.20 : x
  2. Step 2: Convert to fraction form
    234,103.80/351,168.66 = 99,190.20/x
  3. Step 3: Cross multiply
    234,103.80x = 351,168.66 × 99,190.20
  4. Step 4: Simplify right side
    234,103.80x = 34,832,489,619.13
  5. Step 5: Solve for x
    x = 34,832,489,619.13/234,103.80
  6. Step 6: Final answer
    x = 148,790.79

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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.