Home / 283,027.47-391,138.30-231,959.66

Finding the Fourth Proportional to 283,027.47, 391,138.30 and 231,959.66

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Solution

The fourth proportional to 283,027.47, 391,138.30 and 231,959.66 is: 320,563.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,027.47 : 391,138.30 = 231,959.66 : x
  2. Step 2: Convert to fraction form
    283,027.47/391,138.30 = 231,959.66/x
  3. Step 3: Cross multiply
    283,027.47x = 391,138.30 × 231,959.66
  4. Step 4: Simplify right side
    283,027.47x = 90,728,305,125.29
  5. Step 5: Solve for x
    x = 90,728,305,125.29/283,027.47
  6. Step 6: Final answer
    x = 320,563.60

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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.