Home / 247,540.20-371,456.10-163,543.20

Finding the Fourth Proportional to 247,540.20, 371,456.10 and 163,543.20

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Solution

The fourth proportional to 247,540.20, 371,456.10 and 163,543.20 is: 245,411.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,540.20 : 371,456.10 = 163,543.20 : x
  2. Step 2: Convert to fraction form
    247,540.20/371,456.10 = 163,543.20/x
  3. Step 3: Cross multiply
    247,540.20x = 371,456.10 × 163,543.20
  4. Step 4: Simplify right side
    247,540.20x = 60,749,119,253.52
  5. Step 5: Solve for x
    x = 60,749,119,253.52/247,540.20
  6. Step 6: Final answer
    x = 245,411.13

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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.