Home / 391,982.28-540,919.67-230,844.12

Finding the Fourth Proportional to 391,982.28, 540,919.67 and 230,844.12

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Solution

The fourth proportional to 391,982.28, 540,919.67 and 230,844.12 is: 318,555.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,982.28 : 540,919.67 = 230,844.12 : x
  2. Step 2: Convert to fraction form
    391,982.28/540,919.67 = 230,844.12/x
  3. Step 3: Cross multiply
    391,982.28x = 540,919.67 × 230,844.12
  4. Step 4: Simplify right side
    391,982.28x = 124,868,124,057.62
  5. Step 5: Solve for x
    x = 124,868,124,057.62/391,982.28
  6. Step 6: Final answer
    x = 318,555.53

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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.