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Finding the Fourth Proportional to 218,809.08, 328,394.12 and 169,191.59

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Solution

The fourth proportional to 218,809.08, 328,394.12 and 169,191.59 is: 253,926.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,809.08 : 328,394.12 = 169,191.59 : x
  2. Step 2: Convert to fraction form
    218,809.08/328,394.12 = 169,191.59/x
  3. Step 3: Cross multiply
    218,809.08x = 328,394.12 × 169,191.59
  4. Step 4: Simplify right side
    218,809.08x = 55,561,520,821.52
  5. Step 5: Solve for x
    x = 55,561,520,821.52/218,809.08
  6. Step 6: Final answer
    x = 253,926.94

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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.