Home / 380,867.48-571,375.95-140,983.48

Finding the Fourth Proportional to 380,867.48, 571,375.95 and 140,983.48

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Solution

The fourth proportional to 380,867.48, 571,375.95 and 140,983.48 is: 211,502.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,867.48 : 571,375.95 = 140,983.48 : x
  2. Step 2: Convert to fraction form
    380,867.48/571,375.95 = 140,983.48/x
  3. Step 3: Cross multiply
    380,867.48x = 571,375.95 × 140,983.48
  4. Step 4: Simplify right side
    380,867.48x = 80,554,567,676.65
  5. Step 5: Solve for x
    x = 80,554,567,676.65/380,867.48
  6. Step 6: Final answer
    x = 211,502.88

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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.