Home / 274,859.15-379,279.97-153,974.81

Finding the Fourth Proportional to 274,859.15, 379,279.97 and 153,974.81

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Solution

The fourth proportional to 274,859.15, 379,279.97 and 153,974.81 is: 212,470.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,859.15 : 379,279.97 = 153,974.81 : x
  2. Step 2: Convert to fraction form
    274,859.15/379,279.97 = 153,974.81/x
  3. Step 3: Cross multiply
    274,859.15x = 379,279.97 × 153,974.81
  4. Step 4: Simplify right side
    274,859.15x = 58,399,558,651.28
  5. Step 5: Solve for x
    x = 58,399,558,651.28/274,859.15
  6. Step 6: Final answer
    x = 212,470.85

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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.