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Finding the Fourth Proportional to 275,718.80, 413,578.20 and 157,402.10

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Solution

The fourth proportional to 275,718.80, 413,578.20 and 157,402.10 is: 236,103.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,718.80 : 413,578.20 = 157,402.10 : x
  2. Step 2: Convert to fraction form
    275,718.80/413,578.20 = 157,402.10/x
  3. Step 3: Cross multiply
    275,718.80x = 413,578.20 × 157,402.10
  4. Step 4: Simplify right side
    275,718.80x = 65,098,077,194.22
  5. Step 5: Solve for x
    x = 65,098,077,194.22/275,718.80
  6. Step 6: Final answer
    x = 236,103.15

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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.