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Finding the Fourth Proportional to 185,265.90, 255,667.19 and 100,382.90

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Solution

The fourth proportional to 185,265.90, 255,667.19 and 100,382.90 is: 138,528.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,265.90 : 255,667.19 = 100,382.90 : x
  2. Step 2: Convert to fraction form
    185,265.90/255,667.19 = 100,382.90/x
  3. Step 3: Cross multiply
    185,265.90x = 255,667.19 × 100,382.90
  4. Step 4: Simplify right side
    185,265.90x = 25,664,612,186.80
  5. Step 5: Solve for x
    x = 25,664,612,186.80/185,265.90
  6. Step 6: Final answer
    x = 138,528.53

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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.