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Finding the Fourth Proportional to 200,546.60, 276,880.14 and 129,050.88

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Solution

The fourth proportional to 200,546.60, 276,880.14 and 129,050.88 is: 178,171.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,546.60 : 276,880.14 = 129,050.88 : x
  2. Step 2: Convert to fraction form
    200,546.60/276,880.14 = 129,050.88/x
  3. Step 3: Cross multiply
    200,546.60x = 276,880.14 × 129,050.88
  4. Step 4: Simplify right side
    200,546.60x = 35,731,625,721.52
  5. Step 5: Solve for x
    x = 35,731,625,721.52/200,546.60
  6. Step 6: Final answer
    x = 178,171.19

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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.