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Finding the Fourth Proportional to 275,891.40, 413,837.10 and 109,679.40

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Solution

The fourth proportional to 275,891.40, 413,837.10 and 109,679.40 is: 164,519.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,891.40 : 413,837.10 = 109,679.40 : x
  2. Step 2: Convert to fraction form
    275,891.40/413,837.10 = 109,679.40/x
  3. Step 3: Cross multiply
    275,891.40x = 413,837.10 × 109,679.40
  4. Step 4: Simplify right side
    275,891.40x = 45,389,404,825.74
  5. Step 5: Solve for x
    x = 45,389,404,825.74/275,891.40
  6. Step 6: Final answer
    x = 164,519.10

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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.