Home / 272,227.20-408,423.87-139,200.90

Finding the Fourth Proportional to 272,227.20, 408,423.87 and 139,200.90

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Solution

The fourth proportional to 272,227.20, 408,423.87 and 139,200.90 is: 208,843.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,227.20 : 408,423.87 = 139,200.90 : x
  2. Step 2: Convert to fraction form
    272,227.20/408,423.87 = 139,200.90/x
  3. Step 3: Cross multiply
    272,227.20x = 408,423.87 × 139,200.90
  4. Step 4: Simplify right side
    272,227.20x = 56,852,968,753.89
  5. Step 5: Solve for x
    x = 56,852,968,753.89/272,227.20
  6. Step 6: Final answer
    x = 208,843.82

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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.