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Finding the Fourth Proportional to 375,517.11, 518,039.91 and 332,540.40

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Solution

The fourth proportional to 375,517.11, 518,039.91 and 332,540.40 is: 458,751.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,517.11 : 518,039.91 = 332,540.40 : x
  2. Step 2: Convert to fraction form
    375,517.11/518,039.91 = 332,540.40/x
  3. Step 3: Cross multiply
    375,517.11x = 518,039.91 × 332,540.40
  4. Step 4: Simplify right side
    375,517.11x = 172,269,198,887.36
  5. Step 5: Solve for x
    x = 172,269,198,887.36/375,517.11
  6. Step 6: Final answer
    x = 458,751.93

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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.