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Finding the Fourth Proportional to 273,044.17, 409,566.39 and 86,070.25

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Solution

The fourth proportional to 273,044.17, 409,566.39 and 86,070.25 is: 129,105.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,044.17 : 409,566.39 = 86,070.25 : x
  2. Step 2: Convert to fraction form
    273,044.17/409,566.39 = 86,070.25/x
  3. Step 3: Cross multiply
    273,044.17x = 409,566.39 × 86,070.25
  4. Step 4: Simplify right side
    273,044.17x = 35,251,481,578.90
  5. Step 5: Solve for x
    x = 35,251,481,578.90/273,044.17
  6. Step 6: Final answer
    x = 129,105.42

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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.