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Finding the Fourth Proportional to 218,801.80, 328,237.26 and 94,143.88

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Solution

The fourth proportional to 218,801.80, 328,237.26 and 94,143.88 is: 141,230.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,801.80 : 328,237.26 = 94,143.88 : x
  2. Step 2: Convert to fraction form
    218,801.80/328,237.26 = 94,143.88/x
  3. Step 3: Cross multiply
    218,801.80x = 328,237.26 × 94,143.88
  4. Step 4: Simplify right side
    218,801.80x = 30,901,529,216.97
  5. Step 5: Solve for x
    x = 30,901,529,216.97/218,801.80
  6. Step 6: Final answer
    x = 141,230.69

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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.