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Finding the Fourth Proportional to 338.98, 466.40 and 329.26

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Solution

The fourth proportional to 338.98, 466.40 and 329.26 is: 453.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    338.98 : 466.40 = 329.26 : x
  2. Step 2: Convert to fraction form
    338.98/466.40 = 329.26/x
  3. Step 3: Cross multiply
    338.98x = 466.40 × 329.26
  4. Step 4: Simplify right side
    338.98x = 153,566.86
  5. Step 5: Solve for x
    x = 153,566.86/338.98
  6. Step 6: Final answer
    x = 453.03

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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.