Home / 205,974.38-284,249.91-115,349.49

Finding the Fourth Proportional to 205,974.38, 284,249.91 and 115,349.49

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Solution

The fourth proportional to 205,974.38, 284,249.91 and 115,349.49 is: 159,185.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,974.38 : 284,249.91 = 115,349.49 : x
  2. Step 2: Convert to fraction form
    205,974.38/284,249.91 = 115,349.49/x
  3. Step 3: Cross multiply
    205,974.38x = 284,249.91 × 115,349.49
  4. Step 4: Simplify right side
    205,974.38x = 32,788,082,151.05
  5. Step 5: Solve for x
    x = 32,788,082,151.05/205,974.38
  6. Step 6: Final answer
    x = 159,185.25

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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.