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Finding the Fourth Proportional to 328.12, 452.28 and 273.04

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Solution

The fourth proportional to 328.12, 452.28 and 273.04 is: 376.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    328.12 : 452.28 = 273.04 : x
  2. Step 2: Convert to fraction form
    328.12/452.28 = 273.04/x
  3. Step 3: Cross multiply
    328.12x = 452.28 × 273.04
  4. Step 4: Simplify right side
    328.12x = 123,490.53
  5. Step 5: Solve for x
    x = 123,490.53/328.12
  6. Step 6: Final answer
    x = 376.36

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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.