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Finding the Fourth Proportional to 466.12, 643.01 and 326.18

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Solution

The fourth proportional to 466.12, 643.01 and 326.18 is: 449.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    466.12 : 643.01 = 326.18 : x
  2. Step 2: Convert to fraction form
    466.12/643.01 = 326.18/x
  3. Step 3: Cross multiply
    466.12x = 643.01 × 326.18
  4. Step 4: Simplify right side
    466.12x = 209,739.42
  5. Step 5: Solve for x
    x = 209,739.42/466.12
  6. Step 6: Final answer
    x = 449.97

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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.