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Finding the Fourth Proportional to 275,743.80, 413,615.70 and 247,750.20

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Solution

The fourth proportional to 275,743.80, 413,615.70 and 247,750.20 is: 371,625.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,743.80 : 413,615.70 = 247,750.20 : x
  2. Step 2: Convert to fraction form
    275,743.80/413,615.70 = 247,750.20/x
  3. Step 3: Cross multiply
    275,743.80x = 413,615.70 × 247,750.20
  4. Step 4: Simplify right side
    275,743.80x = 102,473,372,398.14
  5. Step 5: Solve for x
    x = 102,473,372,398.14/275,743.80
  6. Step 6: Final answer
    x = 371,625.30

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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.