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Finding the Fourth Proportional to 218,303.85, 327,497.39 and 76,189.72

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Solution

The fourth proportional to 218,303.85, 327,497.39 and 76,189.72 is: 114,299.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,303.85 : 327,497.39 = 76,189.72 : x
  2. Step 2: Convert to fraction form
    218,303.85/327,497.39 = 76,189.72/x
  3. Step 3: Cross multiply
    218,303.85x = 327,497.39 × 76,189.72
  4. Step 4: Simplify right side
    218,303.85x = 24,951,934,444.83
  5. Step 5: Solve for x
    x = 24,951,934,444.83/218,303.85
  6. Step 6: Final answer
    x = 114,299.10

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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.