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Finding the Fourth Proportional to 273,340.80, 410,068.80 and 86,371.20

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Solution

The fourth proportional to 273,340.80, 410,068.80 and 86,371.20 is: 129,575.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,340.80 : 410,068.80 = 86,371.20 : x
  2. Step 2: Convert to fraction form
    273,340.80/410,068.80 = 86,371.20/x
  3. Step 3: Cross multiply
    273,340.80x = 410,068.80 × 86,371.20
  4. Step 4: Simplify right side
    273,340.80x = 35,418,134,338.56
  5. Step 5: Solve for x
    x = 35,418,134,338.56/273,340.80
  6. Step 6: Final answer
    x = 129,575.00

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.