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Finding the Fourth Proportional to 327,499.81, 491,249.71 and 90,842.49

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Solution

The fourth proportional to 327,499.81, 491,249.71 and 90,842.49 is: 136,263.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,499.81 : 491,249.71 = 90,842.49 : x
  2. Step 2: Convert to fraction form
    327,499.81/491,249.71 = 90,842.49/x
  3. Step 3: Cross multiply
    327,499.81x = 491,249.71 × 90,842.49
  4. Step 4: Simplify right side
    327,499.81x = 44,626,346,868.18
  5. Step 5: Solve for x
    x = 44,626,346,868.18/327,499.81
  6. Step 6: Final answer
    x = 136,263.73

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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.