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Finding the Fourth Proportional to 499.86, 749.04 and 326.22

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Solution

The fourth proportional to 499.86, 749.04 and 326.22 is: 488.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    499.86 : 749.04 = 326.22 : x
  2. Step 2: Convert to fraction form
    499.86/749.04 = 326.22/x
  3. Step 3: Cross multiply
    499.86x = 749.04 × 326.22
  4. Step 4: Simplify right side
    499.86x = 244,351.83
  5. Step 5: Solve for x
    x = 244,351.83/499.86
  6. Step 6: Final answer
    x = 488.84

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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.