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Finding the Fourth Proportional to 328.81, 453.75 and 181.46

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Solution

The fourth proportional to 328.81, 453.75 and 181.46 is: 250.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    328.81 : 453.75 = 181.46 : x
  2. Step 2: Convert to fraction form
    328.81/453.75 = 181.46/x
  3. Step 3: Cross multiply
    328.81x = 453.75 × 181.46
  4. Step 4: Simplify right side
    328.81x = 82,336.40
  5. Step 5: Solve for x
    x = 82,336.40/328.81
  6. Step 6: Final answer
    x = 250.41

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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.