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Finding the Fourth Proportional to 303,067.97, 418,080.16 and 231,323.44

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Solution

The fourth proportional to 303,067.97, 418,080.16 and 231,323.44 is: 319,109.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,067.97 : 418,080.16 = 231,323.44 : x
  2. Step 2: Convert to fraction form
    303,067.97/418,080.16 = 231,323.44/x
  3. Step 3: Cross multiply
    303,067.97x = 418,080.16 × 231,323.44
  4. Step 4: Simplify right side
    303,067.97x = 96,711,740,806.95
  5. Step 5: Solve for x
    x = 96,711,740,806.95/303,067.97
  6. Step 6: Final answer
    x = 319,109.08

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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.