Home / 279,296.12-418,616.03-129,219.32

Finding the Fourth Proportional to 279,296.12, 418,616.03 and 129,219.32

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Solution

The fourth proportional to 279,296.12, 418,616.03 and 129,219.32 is: 193,677.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,296.12 : 418,616.03 = 129,219.32 : x
  2. Step 2: Convert to fraction form
    279,296.12/418,616.03 = 129,219.32/x
  3. Step 3: Cross multiply
    279,296.12x = 418,616.03 × 129,219.32
  4. Step 4: Simplify right side
    279,296.12x = 54,093,280,107.29
  5. Step 5: Solve for x
    x = 54,093,280,107.29/279,296.12
  6. Step 6: Final answer
    x = 193,677.16

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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.