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Finding the Fourth Proportional to 282.38, 389.68 and 184.30

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Solution

The fourth proportional to 282.38, 389.68 and 184.30 is: 254.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    282.38 : 389.68 = 184.30 : x
  2. Step 2: Convert to fraction form
    282.38/389.68 = 184.30/x
  3. Step 3: Cross multiply
    282.38x = 389.68 × 184.30
  4. Step 4: Simplify right side
    282.38x = 71,816.59
  5. Step 5: Solve for x
    x = 71,816.59/282.38
  6. Step 6: Final answer
    x = 254.33

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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.