Home / 200,961.28-277,269.75-129,382.74

Finding the Fourth Proportional to 200,961.28, 277,269.75 and 129,382.74

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Solution

The fourth proportional to 200,961.28, 277,269.75 and 129,382.74 is: 178,511.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,961.28 : 277,269.75 = 129,382.74 : x
  2. Step 2: Convert to fraction form
    200,961.28/277,269.75 = 129,382.74/x
  3. Step 3: Cross multiply
    200,961.28x = 277,269.75 × 129,382.74
  4. Step 4: Simplify right side
    200,961.28x = 35,873,919,974.12
  5. Step 5: Solve for x
    x = 35,873,919,974.12/200,961.28
  6. Step 6: Final answer
    x = 178,511.60

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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.