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Finding the Fourth Proportional to 328.61, 453.46 and 181.25

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Solution

The fourth proportional to 328.61, 453.46 and 181.25 is: 250.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    328.61 : 453.46 = 181.25 : x
  2. Step 2: Convert to fraction form
    328.61/453.46 = 181.25/x
  3. Step 3: Cross multiply
    328.61x = 453.46 × 181.25
  4. Step 4: Simplify right side
    328.61x = 82,186.90
  5. Step 5: Solve for x
    x = 82,186.90/328.61
  6. Step 6: Final answer
    x = 250.11

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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.