Home / 274,279.57-378,537.20-153,451.46

Finding the Fourth Proportional to 274,279.57, 378,537.20 and 153,451.46

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Solution

The fourth proportional to 274,279.57, 378,537.20 and 153,451.46 is: 211,780.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,279.57 : 378,537.20 = 153,451.46 : x
  2. Step 2: Convert to fraction form
    274,279.57/378,537.20 = 153,451.46/x
  3. Step 3: Cross multiply
    274,279.57x = 378,537.20 × 153,451.46
  4. Step 4: Simplify right side
    274,279.57x = 58,087,086,758.84
  5. Step 5: Solve for x
    x = 58,087,086,758.84/274,279.57
  6. Step 6: Final answer
    x = 211,780.58

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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.