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Finding the Fourth Proportional to 328.84, 453.52 and 254.12

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Solution

The fourth proportional to 328.84, 453.52 and 254.12 is: 350.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    328.84 : 453.52 = 254.12 : x
  2. Step 2: Convert to fraction form
    328.84/453.52 = 254.12/x
  3. Step 3: Cross multiply
    328.84x = 453.52 × 254.12
  4. Step 4: Simplify right side
    328.84x = 115,248.50
  5. Step 5: Solve for x
    x = 115,248.50/328.84
  6. Step 6: Final answer
    x = 350.47

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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.