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Finding the Fourth Proportional to 303,081.48, 418,255.74 and 167,115.78

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Solution

The fourth proportional to 303,081.48, 418,255.74 and 167,115.78 is: 230,621.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,081.48 : 418,255.74 = 167,115.78 : x
  2. Step 2: Convert to fraction form
    303,081.48/418,255.74 = 167,115.78/x
  3. Step 3: Cross multiply
    303,081.48x = 418,255.74 × 167,115.78
  4. Step 4: Simplify right side
    303,081.48x = 69,897,134,229.58
  5. Step 5: Solve for x
    x = 69,897,134,229.58/303,081.48
  6. Step 6: Final answer
    x = 230,621.59

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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.