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Finding the Fourth Proportional to 575.15, 793.79 and 326.53

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Solution

The fourth proportional to 575.15, 793.79 and 326.53 is: 450.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    575.15 : 793.79 = 326.53 : x
  2. Step 2: Convert to fraction form
    575.15/793.79 = 326.53/x
  3. Step 3: Cross multiply
    575.15x = 793.79 × 326.53
  4. Step 4: Simplify right side
    575.15x = 259,192.63
  5. Step 5: Solve for x
    x = 259,192.63/575.15
  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.