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Finding the Fourth Proportional to 250,857, 346,182.66 and 137,687.04

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Solution

The fourth proportional to 250,857, 346,182.66 and 137,687.04 is: 190,008.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,857 : 346,182.66 = 137,687.04 : x
  2. Step 2: Convert to fraction form
    250,857/346,182.66 = 137,687.04/x
  3. Step 3: Cross multiply
    250,857x = 346,182.66 × 137,687.04
  4. Step 4: Simplify right side
    250,857x = 47,664,865,754.73
  5. Step 5: Solve for x
    x = 47,664,865,754.73/250,857
  6. Step 6: Final answer
    x = 190,008.12

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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.