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Finding the Fourth Proportional to 200,580.66, 276,927.17 and 129,084.93

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Solution

The fourth proportional to 200,580.66, 276,927.17 and 129,084.93 is: 178,218.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,580.66 : 276,927.17 = 129,084.93 : x
  2. Step 2: Convert to fraction form
    200,580.66/276,927.17 = 129,084.93/x
  3. Step 3: Cross multiply
    200,580.66x = 276,927.17 × 129,084.93
  4. Step 4: Simplify right side
    200,580.66x = 35,747,123,709.12
  5. Step 5: Solve for x
    x = 35,747,123,709.12/200,580.66
  6. Step 6: Final answer
    x = 178,218.20

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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.