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Finding the Fourth Proportional to 218,479.90, 327,717.04 and 119,272.12

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Solution

The fourth proportional to 218,479.90, 327,717.04 and 119,272.12 is: 178,906.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,479.90 : 327,717.04 = 119,272.12 : x
  2. Step 2: Convert to fraction form
    218,479.90/327,717.04 = 119,272.12/x
  3. Step 3: Cross multiply
    218,479.90x = 327,717.04 × 119,272.12
  4. Step 4: Simplify right side
    218,479.90x = 39,087,506,120.92
  5. Step 5: Solve for x
    x = 39,087,506,120.92/218,479.90
  6. Step 6: Final answer
    x = 178,906.65

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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.