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Finding the Fourth Proportional to 218,801.43, 301,974.18 and 123,338.88

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Solution

The fourth proportional to 218,801.43, 301,974.18 and 123,338.88 is: 170,223.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,801.43 : 301,974.18 = 123,338.88 : x
  2. Step 2: Convert to fraction form
    218,801.43/301,974.18 = 123,338.88/x
  3. Step 3: Cross multiply
    218,801.43x = 301,974.18 × 123,338.88
  4. Step 4: Simplify right side
    218,801.43x = 37,245,157,150.12
  5. Step 5: Solve for x
    x = 37,245,157,150.12/218,801.43
  6. Step 6: Final answer
    x = 170,223.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.