Home / 378,932.70-568,276.02-126,145.29

Finding the Fourth Proportional to 378,932.70, 568,276.02 and 126,145.29

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Solution

The fourth proportional to 378,932.70, 568,276.02 and 126,145.29 is: 189,176.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,932.70 : 568,276.02 = 126,145.29 : x
  2. Step 2: Convert to fraction form
    378,932.70/568,276.02 = 126,145.29/x
  3. Step 3: Cross multiply
    378,932.70x = 568,276.02 × 126,145.29
  4. Step 4: Simplify right side
    378,932.70x = 71,685,343,342.95
  5. Step 5: Solve for x
    x = 71,685,343,342.95/378,932.70
  6. Step 6: Final answer
    x = 189,176.98

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.