Home / 284,115.26-392,067.60-156,789.20

Finding the Fourth Proportional to 284,115.26, 392,067.60 and 156,789.20

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Solution

The fourth proportional to 284,115.26, 392,067.60 and 156,789.20 is: 216,362.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,115.26 : 392,067.60 = 156,789.20 : x
  2. Step 2: Convert to fraction form
    284,115.26/392,067.60 = 156,789.20/x
  3. Step 3: Cross multiply
    284,115.26x = 392,067.60 × 156,789.20
  4. Step 4: Simplify right side
    284,115.26x = 61,471,965,349.92
  5. Step 5: Solve for x
    x = 61,471,965,349.92/284,115.26
  6. Step 6: Final answer
    x = 216,362.77

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.