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Finding the Fourth Proportional to 218,310.34, 326,858.16 and 111,463.54

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Solution

The fourth proportional to 218,310.34, 326,858.16 and 111,463.54 is: 166,885.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,310.34 : 326,858.16 = 111,463.54 : x
  2. Step 2: Convert to fraction form
    218,310.34/326,858.16 = 111,463.54/x
  3. Step 3: Cross multiply
    218,310.34x = 326,858.16 × 111,463.54
  4. Step 4: Simplify right side
    218,310.34x = 36,432,767,591.49
  5. Step 5: Solve for x
    x = 36,432,767,591.49/218,310.34
  6. Step 6: Final answer
    x = 166,885.21

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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.