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Finding the Fourth Proportional to 329.41, 454.47 and 253.73

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Solution

The fourth proportional to 329.41, 454.47 and 253.73 is: 350.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    329.41 : 454.47 = 253.73 : x
  2. Step 2: Convert to fraction form
    329.41/454.47 = 253.73/x
  3. Step 3: Cross multiply
    329.41x = 454.47 × 253.73
  4. Step 4: Simplify right side
    329.41x = 115,312.11
  5. Step 5: Solve for x
    x = 115,312.11/329.41
  6. Step 6: Final answer
    x = 350.05

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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.