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Finding the Fourth Proportional to 250,282.50, 345,387 and 135,558.96

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Solution

The fourth proportional to 250,282.50, 345,387 and 135,558.96 is: 187,069.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,282.50 : 345,387 = 135,558.96 : x
  2. Step 2: Convert to fraction form
    250,282.50/345,387 = 135,558.96/x
  3. Step 3: Cross multiply
    250,282.50x = 345,387 × 135,558.96
  4. Step 4: Simplify right side
    250,282.50x = 46,820,302,517.52
  5. Step 5: Solve for x
    x = 46,820,302,517.52/250,282.50
  6. Step 6: Final answer
    x = 187,069.82

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.