Home / 397,179.12-547,877.76-251,929.56

Finding the Fourth Proportional to 397,179.12, 547,877.76 and 251,929.56

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Solution

The fourth proportional to 397,179.12, 547,877.76 and 251,929.56 is: 347,517.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,179.12 : 547,877.76 = 251,929.56 : x
  2. Step 2: Convert to fraction form
    397,179.12/547,877.76 = 251,929.56/x
  3. Step 3: Cross multiply
    397,179.12x = 547,877.76 × 251,929.56
  4. Step 4: Simplify right side
    397,179.12x = 138,026,603,010.59
  5. Step 5: Solve for x
    x = 138,026,603,010.59/397,179.12
  6. Step 6: Final answer
    x = 347,517.27

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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.