Home / 391,250.88-539,928.46-230,112.72

Finding the Fourth Proportional to 391,250.88, 539,928.46 and 230,112.72

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Solution

The fourth proportional to 391,250.88, 539,928.46 and 230,112.72 is: 317,556.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,250.88 : 539,928.46 = 230,112.72 : x
  2. Step 2: Convert to fraction form
    391,250.88/539,928.46 = 230,112.72/x
  3. Step 3: Cross multiply
    391,250.88x = 539,928.46 × 230,112.72
  4. Step 4: Simplify right side
    391,250.88x = 124,244,406,536.01
  5. Step 5: Solve for x
    x = 124,244,406,536.01/391,250.88
  6. Step 6: Final answer
    x = 317,556.87

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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.