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Finding the Fourth Proportional to 575.25, 793.86 and 326.56

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Solution

The fourth proportional to 575.25, 793.86 and 326.56 is: 450.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    575.25 : 793.86 = 326.56 : x
  2. Step 2: Convert to fraction form
    575.25/793.86 = 326.56/x
  3. Step 3: Cross multiply
    575.25x = 793.86 × 326.56
  4. Step 4: Simplify right side
    575.25x = 259,242.92
  5. Step 5: Solve for x
    x = 259,242.92/575.25
  6. Step 6: Final answer
    x = 450.66

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.