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Finding the Fourth Proportional to 201,882.72, 278,531.28 and 130,310.31

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Solution

The fourth proportional to 201,882.72, 278,531.28 and 130,310.31 is: 179,785.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,882.72 : 278,531.28 = 130,310.31 : x
  2. Step 2: Convert to fraction form
    201,882.72/278,531.28 = 130,310.31/x
  3. Step 3: Cross multiply
    201,882.72x = 278,531.28 × 130,310.31
  4. Step 4: Simplify right side
    201,882.72x = 36,295,497,441.50
  5. Step 5: Solve for x
    x = 36,295,497,441.50/201,882.72
  6. Step 6: Final answer
    x = 179,785.06

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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.