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Finding the Fourth Proportional to 323,993.55, 485,759.75 and 124,144.95

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Solution

The fourth proportional to 323,993.55, 485,759.75 and 124,144.95 is: 186,129.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,993.55 : 485,759.75 = 124,144.95 : x
  2. Step 2: Convert to fraction form
    323,993.55/485,759.75 = 124,144.95/x
  3. Step 3: Cross multiply
    323,993.55x = 485,759.75 × 124,144.95
  4. Step 4: Simplify right side
    323,993.55x = 60,304,619,255.04
  5. Step 5: Solve for x
    x = 60,304,619,255.04/323,993.55
  6. Step 6: Final answer
    x = 186,129.07

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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.