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Finding the Fourth Proportional to 275,733.80, 413,600.70 and 247,740.20

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Solution

The fourth proportional to 275,733.80, 413,600.70 and 247,740.20 is: 371,610.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,733.80 : 413,600.70 = 247,740.20 : x
  2. Step 2: Convert to fraction form
    275,733.80/413,600.70 = 247,740.20/x
  3. Step 3: Cross multiply
    275,733.80x = 413,600.70 × 247,740.20
  4. Step 4: Simplify right side
    275,733.80x = 102,465,520,138.14
  5. Step 5: Solve for x
    x = 102,465,520,138.14/275,733.80
  6. Step 6: Final answer
    x = 371,610.30

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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.