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Finding the Fourth Proportional to 467.49, 644.77 and 301.72

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Solution

The fourth proportional to 467.49, 644.77 and 301.72 is: 416.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    467.49 : 644.77 = 301.72 : x
  2. Step 2: Convert to fraction form
    467.49/644.77 = 301.72/x
  3. Step 3: Cross multiply
    467.49x = 644.77 × 301.72
  4. Step 4: Simplify right side
    467.49x = 194,540.00
  5. Step 5: Solve for x
    x = 194,540.00/467.49
  6. Step 6: Final answer
    x = 416.14

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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.