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Finding the Fourth Proportional to 401,249.89, 553,781.88 and 248,337.33

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Solution

The fourth proportional to 401,249.89, 553,781.88 and 248,337.33 is: 342,740.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,249.89 : 553,781.88 = 248,337.33 : x
  2. Step 2: Convert to fraction form
    401,249.89/553,781.88 = 248,337.33/x
  3. Step 3: Cross multiply
    401,249.89x = 553,781.88 × 248,337.33
  4. Step 4: Simplify right side
    401,249.89x = 137,524,713,481.58
  5. Step 5: Solve for x
    x = 137,524,713,481.58/401,249.89
  6. Step 6: Final answer
    x = 342,740.81

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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.