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Finding the Fourth Proportional to 275,087.19, 379,687.85 and 167,716.42

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Solution

The fourth proportional to 275,087.19, 379,687.85 and 167,716.42 is: 231,489.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,087.19 : 379,687.85 = 167,716.42 : x
  2. Step 2: Convert to fraction form
    275,087.19/379,687.85 = 167,716.42/x
  3. Step 3: Cross multiply
    275,087.19x = 379,687.85 × 167,716.42
  4. Step 4: Simplify right side
    275,087.19x = 63,679,886,080.91
  5. Step 5: Solve for x
    x = 63,679,886,080.91/275,087.19
  6. Step 6: Final answer
    x = 231,489.83

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1.5x scale

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.