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Finding the Fourth Proportional to 218,757.88, 328,195.68 and 69,004

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Solution

The fourth proportional to 218,757.88, 328,195.68 and 69,004 is: 103,524.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,757.88 : 328,195.68 = 69,004 : x
  2. Step 2: Convert to fraction form
    218,757.88/328,195.68 = 69,004/x
  3. Step 3: Cross multiply
    218,757.88x = 328,195.68 × 69,004
  4. Step 4: Simplify right side
    218,757.88x = 22,646,814,702.72
  5. Step 5: Solve for x
    x = 22,646,814,702.72/218,757.88
  6. Step 6: Final answer
    x = 103,524.57

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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.