Home / 286,034.88-394,738.68-172,835.76

Finding the Fourth Proportional to 286,034.88, 394,738.68 and 172,835.76

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Solution

The fourth proportional to 286,034.88, 394,738.68 and 172,835.76 is: 238,519.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,034.88 : 394,738.68 = 172,835.76 : x
  2. Step 2: Convert to fraction form
    286,034.88/394,738.68 = 172,835.76/x
  3. Step 3: Cross multiply
    286,034.88x = 394,738.68 × 172,835.76
  4. Step 4: Simplify right side
    286,034.88x = 68,224,959,759.20
  5. Step 5: Solve for x
    x = 68,224,959,759.20/286,034.88
  6. Step 6: Final answer
    x = 238,519.72

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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.