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Finding the Fourth Proportional to 200,960.59, 277,268.80 and 129,382.05

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Solution

The fourth proportional to 200,960.59, 277,268.80 and 129,382.05 is: 178,510.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,960.59 : 277,268.80 = 129,382.05 : x
  2. Step 2: Convert to fraction form
    200,960.59/277,268.80 = 129,382.05/x
  3. Step 3: Cross multiply
    200,960.59x = 277,268.80 × 129,382.05
  4. Step 4: Simplify right side
    200,960.59x = 35,873,605,745.04
  5. Step 5: Solve for x
    x = 35,873,605,745.04/200,960.59
  6. Step 6: Final answer
    x = 178,510.65

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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.