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Finding the Fourth Proportional to 276,798.67, 382,076.49 and 172,104.55

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Solution

The fourth proportional to 276,798.67, 382,076.49 and 172,104.55 is: 237,562.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,798.67 : 382,076.49 = 172,104.55 : x
  2. Step 2: Convert to fraction form
    276,798.67/382,076.49 = 172,104.55/x
  3. Step 3: Cross multiply
    276,798.67x = 382,076.49 × 172,104.55
  4. Step 4: Simplify right side
    276,798.67x = 65,757,102,377.03
  5. Step 5: Solve for x
    x = 65,757,102,377.03/276,798.67
  6. Step 6: Final answer
    x = 237,562.93

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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.