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Finding the Fourth Proportional to 327,883.68, 491,609.52 and 128,226.24

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Solution

The fourth proportional to 327,883.68, 491,609.52 and 128,226.24 is: 192,254.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,883.68 : 491,609.52 = 128,226.24 : x
  2. Step 2: Convert to fraction form
    327,883.68/491,609.52 = 128,226.24/x
  3. Step 3: Cross multiply
    327,883.68x = 491,609.52 × 128,226.24
  4. Step 4: Simplify right side
    327,883.68x = 63,037,240,297.80
  5. Step 5: Solve for x
    x = 63,037,240,297.80/327,883.68
  6. Step 6: Final answer
    x = 192,254.89

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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.