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Finding the Fourth Proportional to 328.98, 454.02 and 250.14

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Solution

The fourth proportional to 328.98, 454.02 and 250.14 is: 345.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    328.98 : 454.02 = 250.14 : x
  2. Step 2: Convert to fraction form
    328.98/454.02 = 250.14/x
  3. Step 3: Cross multiply
    328.98x = 454.02 × 250.14
  4. Step 4: Simplify right side
    328.98x = 113,568.56
  5. Step 5: Solve for x
    x = 113,568.56/328.98
  6. Step 6: Final answer
    x = 345.21

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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.