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Finding the Fourth Proportional to 286.49, 395.58 and 176.03

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Solution

The fourth proportional to 286.49, 395.58 and 176.03 is: 243.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    286.49 : 395.58 = 176.03 : x
  2. Step 2: Convert to fraction form
    286.49/395.58 = 176.03/x
  3. Step 3: Cross multiply
    286.49x = 395.58 × 176.03
  4. Step 4: Simplify right side
    286.49x = 69,631.97
  5. Step 5: Solve for x
    x = 69,631.97/286.49
  6. Step 6: Final answer
    x = 243.06

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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.