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Finding the Fourth Proportional to 303,066.97, 418,078.78 and 231,322.44

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Solution

The fourth proportional to 303,066.97, 418,078.78 and 231,322.44 is: 319,107.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,066.97 : 418,078.78 = 231,322.44 : x
  2. Step 2: Convert to fraction form
    303,066.97/418,078.78 = 231,322.44/x
  3. Step 3: Cross multiply
    303,066.97x = 418,078.78 × 231,322.44
  4. Step 4: Simplify right side
    303,066.97x = 96,711,003,501.82
  5. Step 5: Solve for x
    x = 96,711,003,501.82/303,066.97
  6. Step 6: Final answer
    x = 319,107.70

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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.