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Finding the Fourth Proportional to 218,432.76, 327,215.52 and 168,339.12

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Solution

The fourth proportional to 218,432.76, 327,215.52 and 168,339.12 is: 252,174.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,432.76 : 327,215.52 = 168,339.12 : x
  2. Step 2: Convert to fraction form
    218,432.76/327,215.52 = 168,339.12/x
  3. Step 3: Cross multiply
    218,432.76x = 327,215.52 × 168,339.12
  4. Step 4: Simplify right side
    218,432.76x = 55,083,172,687.14
  5. Step 5: Solve for x
    x = 55,083,172,687.14/218,432.76
  6. Step 6: Final answer
    x = 252,174.50

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1.5x scale

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.