Home / 391,425.03-540,272.84-230,331.87

Finding the Fourth Proportional to 391,425.03, 540,272.84 and 230,331.87

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Solution

The fourth proportional to 391,425.03, 540,272.84 and 230,331.87 is: 317,920.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,425.03 : 540,272.84 = 230,331.87 : x
  2. Step 2: Convert to fraction form
    391,425.03/540,272.84 = 230,331.87/x
  3. Step 3: Cross multiply
    391,425.03x = 540,272.84 × 230,331.87
  4. Step 4: Simplify right side
    391,425.03x = 124,442,052,395.75
  5. Step 5: Solve for x
    x = 124,442,052,395.75/391,425.03
  6. Step 6: Final answer
    x = 317,920.53

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1.5x scale

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.