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Finding the Fourth Proportional to 250,508.88, 345,689.20 and 143,057.92

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Solution

The fourth proportional to 250,508.88, 345,689.20 and 143,057.92 is: 197,412.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,508.88 : 345,689.20 = 143,057.92 : x
  2. Step 2: Convert to fraction form
    250,508.88/345,689.20 = 143,057.92/x
  3. Step 3: Cross multiply
    250,508.88x = 345,689.20 × 143,057.92
  4. Step 4: Simplify right side
    250,508.88x = 49,453,577,918.46
  5. Step 5: Solve for x
    x = 49,453,577,918.46/250,508.88
  6. Step 6: Final answer
    x = 197,412.47

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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.