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Finding the Fourth Proportional to 303,065.97, 418,077.41 and 231,321.44

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Solution

The fourth proportional to 303,065.97, 418,077.41 and 231,321.44 is: 319,106.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,065.97 : 418,077.41 = 231,321.44 : x
  2. Step 2: Convert to fraction form
    303,065.97/418,077.41 = 231,321.44/x
  3. Step 3: Cross multiply
    303,065.97x = 418,077.41 × 231,321.44
  4. Step 4: Simplify right side
    303,065.97x = 96,710,265,265.68
  5. Step 5: Solve for x
    x = 96,710,265,265.68/303,065.97
  6. Step 6: Final answer
    x = 319,106.32

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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.