Home / 327,041.20-490,634.70-256,182.40

Finding the Fourth Proportional to 327,041.20, 490,634.70 and 256,182.40

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Solution

The fourth proportional to 327,041.20, 490,634.70 and 256,182.40 is: 384,330.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,041.20 : 490,634.70 = 256,182.40 : x
  2. Step 2: Convert to fraction form
    327,041.20/490,634.70 = 256,182.40/x
  3. Step 3: Cross multiply
    327,041.20x = 490,634.70 × 256,182.40
  4. Step 4: Simplify right side
    327,041.20x = 125,691,974,969.28
  5. Step 5: Solve for x
    x = 125,691,974,969.28/327,041.20
  6. Step 6: Final answer
    x = 384,330.71

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1.5x scale

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.