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Finding the Fourth Proportional to 327,452.70, 491,179.05 and 288,086.70

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Solution

The fourth proportional to 327,452.70, 491,179.05 and 288,086.70 is: 432,130.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,452.70 : 491,179.05 = 288,086.70 : x
  2. Step 2: Convert to fraction form
    327,452.70/491,179.05 = 288,086.70/x
  3. Step 3: Cross multiply
    327,452.70x = 491,179.05 × 288,086.70
  4. Step 4: Simplify right side
    327,452.70x = 141,502,151,623.64
  5. Step 5: Solve for x
    x = 141,502,151,623.64/327,452.70
  6. Step 6: Final answer
    x = 432,130.05

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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.