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Finding the Fourth Proportional to 360,759.62, 540,721.17 and 135,976.12

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Solution

The fourth proportional to 360,759.62, 540,721.17 and 135,976.12 is: 203,806.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,759.62 : 540,721.17 = 135,976.12 : x
  2. Step 2: Convert to fraction form
    360,759.62/540,721.17 = 135,976.12/x
  3. Step 3: Cross multiply
    360,759.62x = 540,721.17 × 135,976.12
  4. Step 4: Simplify right side
    360,759.62x = 73,525,165,346.66
  5. Step 5: Solve for x
    x = 73,525,165,346.66/360,759.62
  6. Step 6: Final answer
    x = 203,806.53

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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.