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Finding the Fourth Proportional to 303,475.11, 418,733.13 and 174,388.65

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Solution

The fourth proportional to 303,475.11, 418,733.13 and 174,388.65 is: 240,620.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,475.11 : 418,733.13 = 174,388.65 : x
  2. Step 2: Convert to fraction form
    303,475.11/418,733.13 = 174,388.65/x
  3. Step 3: Cross multiply
    303,475.11x = 418,733.13 × 174,388.65
  4. Step 4: Simplify right side
    303,475.11x = 73,022,305,250.97
  5. Step 5: Solve for x
    x = 73,022,305,250.97/303,475.11
  6. Step 6: Final answer
    x = 240,620.41

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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.