Home / 272,227.15-408,423.80-139,200.85

Finding the Fourth Proportional to 272,227.15, 408,423.80 and 139,200.85

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Solution

The fourth proportional to 272,227.15, 408,423.80 and 139,200.85 is: 208,843.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,227.15 : 408,423.80 = 139,200.85 : x
  2. Step 2: Convert to fraction form
    272,227.15/408,423.80 = 139,200.85/x
  3. Step 3: Cross multiply
    272,227.15x = 408,423.80 × 139,200.85
  4. Step 4: Simplify right side
    272,227.15x = 56,852,940,456.76
  5. Step 5: Solve for x
    x = 56,852,940,456.76/272,227.15
  6. Step 6: Final answer
    x = 208,843.75

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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.