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Finding the Fourth Proportional to 345,591.26, 518,309.12 and 123,975.26

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Solution

The fourth proportional to 345,591.26, 518,309.12 and 123,975.26 is: 185,934.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,591.26 : 518,309.12 = 123,975.26 : x
  2. Step 2: Convert to fraction form
    345,591.26/518,309.12 = 123,975.26/x
  3. Step 3: Cross multiply
    345,591.26x = 518,309.12 × 123,975.26
  4. Step 4: Simplify right side
    345,591.26x = 64,257,504,700.95
  5. Step 5: Solve for x
    x = 64,257,504,700.95/345,591.26
  6. Step 6: Final answer
    x = 185,934.98

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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.