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Finding the Fourth Proportional to 303,067.47, 418,079.48 and 231,322.94

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Solution

The fourth proportional to 303,067.47, 418,079.48 and 231,322.94 is: 319,108.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,067.47 : 418,079.48 = 231,322.94 : x
  2. Step 2: Convert to fraction form
    303,067.47/418,079.48 = 231,322.94/x
  3. Step 3: Cross multiply
    303,067.47x = 418,079.48 × 231,322.94
  4. Step 4: Simplify right side
    303,067.47x = 96,711,371,220.26
  5. Step 5: Solve for x
    x = 96,711,371,220.26/303,067.47
  6. Step 6: Final answer
    x = 319,108.39

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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.