Home / 272,789.70-408,922.08-139,732.62

Finding the Fourth Proportional to 272,789.70, 408,922.08 and 139,732.62

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Solution

The fourth proportional to 272,789.70, 408,922.08 and 139,732.62 is: 209,464.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,789.70 : 408,922.08 = 139,732.62 : x
  2. Step 2: Convert to fraction form
    272,789.70/408,922.08 = 139,732.62/x
  3. Step 3: Cross multiply
    272,789.70x = 408,922.08 × 139,732.62
  4. Step 4: Simplify right side
    272,789.70x = 57,139,753,614.25
  5. Step 5: Solve for x
    x = 57,139,753,614.25/272,789.70
  6. Step 6: Final answer
    x = 209,464.48

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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.