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Finding the Fourth Proportional to 218,195.25, 327,292.70 and 68,447.10

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Solution

The fourth proportional to 218,195.25, 327,292.70 and 68,447.10 is: 102,670.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,195.25 : 327,292.70 = 68,447.10 : x
  2. Step 2: Convert to fraction form
    218,195.25/327,292.70 = 68,447.10/x
  3. Step 3: Cross multiply
    218,195.25x = 327,292.70 × 68,447.10
  4. Step 4: Simplify right side
    218,195.25x = 22,402,236,166.17
  5. Step 5: Solve for x
    x = 22,402,236,166.17/218,195.25
  6. Step 6: Final answer
    x = 102,670.60

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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.