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Finding the Fourth Proportional to 375,982.21, 518,888.25 and 206,249.14

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Solution

The fourth proportional to 375,982.21, 518,888.25 and 206,249.14 is: 284,641.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,982.21 : 518,888.25 = 206,249.14 : x
  2. Step 2: Convert to fraction form
    375,982.21/518,888.25 = 206,249.14/x
  3. Step 3: Cross multiply
    375,982.21x = 518,888.25 × 206,249.14
  4. Step 4: Simplify right side
    375,982.21x = 107,020,255,318.61
  5. Step 5: Solve for x
    x = 107,020,255,318.61/375,982.21
  6. Step 6: Final answer
    x = 284,641.81

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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.