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Finding the Fourth Proportional to 310,754.82, 428,839.26 and 176,618.82

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Solution

The fourth proportional to 310,754.82, 428,839.26 and 176,618.82 is: 243,732.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,754.82 : 428,839.26 = 176,618.82 : x
  2. Step 2: Convert to fraction form
    310,754.82/428,839.26 = 176,618.82/x
  3. Step 3: Cross multiply
    310,754.82x = 428,839.26 × 176,618.82
  4. Step 4: Simplify right side
    310,754.82x = 75,741,084,070.87
  5. Step 5: Solve for x
    x = 75,741,084,070.87/310,754.82
  6. Step 6: Final answer
    x = 243,732.61

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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.