Home / 391,874.12-587,977.60-214,173.52

Finding the Fourth Proportional to 391,874.12, 587,977.60 and 214,173.52

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Solution

The fourth proportional to 391,874.12, 587,977.60 and 214,173.52 is: 321,351.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,874.12 : 587,977.60 = 214,173.52 : x
  2. Step 2: Convert to fraction form
    391,874.12/587,977.60 = 214,173.52/x
  3. Step 3: Cross multiply
    391,874.12x = 587,977.60 × 214,173.52
  4. Step 4: Simplify right side
    391,874.12x = 125,929,232,273.15
  5. Step 5: Solve for x
    x = 125,929,232,273.15/391,874.12
  6. Step 6: Final answer
    x = 321,351.23

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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.