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Finding the Fourth Proportional to 327,150.60, 490,725.90 and 215,176.20

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Solution

The fourth proportional to 327,150.60, 490,725.90 and 215,176.20 is: 322,764.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,150.60 : 490,725.90 = 215,176.20 : x
  2. Step 2: Convert to fraction form
    327,150.60/490,725.90 = 215,176.20/x
  3. Step 3: Cross multiply
    327,150.60x = 490,725.90 × 215,176.20
  4. Step 4: Simplify right side
    327,150.60x = 105,592,534,403.58
  5. Step 5: Solve for x
    x = 105,592,534,403.58/327,150.60
  6. Step 6: Final answer
    x = 322,764.30

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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.