Home / 274,273.86-378,508.28-153,414.78

Finding the Fourth Proportional to 274,273.86, 378,508.28 and 153,414.78

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Solution

The fourth proportional to 274,273.86, 378,508.28 and 153,414.78 is: 211,718.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,273.86 : 378,508.28 = 153,414.78 : x
  2. Step 2: Convert to fraction form
    274,273.86/378,508.28 = 153,414.78/x
  3. Step 3: Cross multiply
    274,273.86x = 378,508.28 × 153,414.78
  4. Step 4: Simplify right side
    274,273.86x = 58,068,762,317.90
  5. Step 5: Solve for x
    x = 58,068,762,317.90/274,273.86
  6. Step 6: Final answer
    x = 211,718.18

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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.