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Finding the Fourth Proportional to 230,469.15, 345,860.01 and 80,710.68

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Solution

The fourth proportional to 230,469.15, 345,860.01 and 80,710.68 is: 121,120.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,469.15 : 345,860.01 = 80,710.68 : x
  2. Step 2: Convert to fraction form
    230,469.15/345,860.01 = 80,710.68/x
  3. Step 3: Cross multiply
    230,469.15x = 345,860.01 × 80,710.68
  4. Step 4: Simplify right side
    230,469.15x = 27,914,596,591.91
  5. Step 5: Solve for x
    x = 27,914,596,591.91/230,469.15
  6. Step 6: Final answer
    x = 121,120.75

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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.