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Finding the Fourth Proportional to 376,305.54, 519,274.53 and 215,167.38

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Solution

The fourth proportional to 376,305.54, 519,274.53 and 215,167.38 is: 296,915.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,305.54 : 519,274.53 = 215,167.38 : x
  2. Step 2: Convert to fraction form
    376,305.54/519,274.53 = 215,167.38/x
  3. Step 3: Cross multiply
    376,305.54x = 519,274.53 × 215,167.38
  4. Step 4: Simplify right side
    376,305.54x = 111,730,940,120.83
  5. Step 5: Solve for x
    x = 111,730,940,120.83/376,305.54
  6. Step 6: Final answer
    x = 296,915.48

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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.