Home / 327,154.78-490,531.20-127,242.15

Finding the Fourth Proportional to 327,154.78, 490,531.20 and 127,242.15

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Solution

The fourth proportional to 327,154.78, 490,531.20 and 127,242.15 is: 190,785.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,154.78 : 490,531.20 = 127,242.15 : x
  2. Step 2: Convert to fraction form
    327,154.78/490,531.20 = 127,242.15/x
  3. Step 3: Cross multiply
    327,154.78x = 490,531.20 × 127,242.15
  4. Step 4: Simplify right side
    327,154.78x = 62,416,244,530.08
  5. Step 5: Solve for x
    x = 62,416,244,530.08/327,154.78
  6. Step 6: Final answer
    x = 190,785.06

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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.