Home / 272,012.20-408,083.10-131,655.40

Finding the Fourth Proportional to 272,012.20, 408,083.10 and 131,655.40

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Solution

The fourth proportional to 272,012.20, 408,083.10 and 131,655.40 is: 197,514.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,012.20 : 408,083.10 = 131,655.40 : x
  2. Step 2: Convert to fraction form
    272,012.20/408,083.10 = 131,655.40/x
  3. Step 3: Cross multiply
    272,012.20x = 408,083.10 × 131,655.40
  4. Step 4: Simplify right side
    272,012.20x = 53,726,343,763.74
  5. Step 5: Solve for x
    x = 53,726,343,763.74/272,012.20
  6. Step 6: Final answer
    x = 197,514.46

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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.