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Finding the Fourth Proportional to 373.58, 558.40 and 324.44

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Solution

The fourth proportional to 373.58, 558.40 and 324.44 is: 484.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    373.58 : 558.40 = 324.44 : x
  2. Step 2: Convert to fraction form
    373.58/558.40 = 324.44/x
  3. Step 3: Cross multiply
    373.58x = 558.40 × 324.44
  4. Step 4: Simplify right side
    373.58x = 181,167.30
  5. Step 5: Solve for x
    x = 181,167.30/373.58
  6. Step 6: Final answer
    x = 484.95

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.