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Finding the Fourth Proportional to 410.49, 566.17 and 286.09

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Solution

The fourth proportional to 410.49, 566.17 and 286.09 is: 394.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    410.49 : 566.17 = 286.09 : x
  2. Step 2: Convert to fraction form
    410.49/566.17 = 286.09/x
  3. Step 3: Cross multiply
    410.49x = 566.17 × 286.09
  4. Step 4: Simplify right side
    410.49x = 161,973.44
  5. Step 5: Solve for x
    x = 161,973.44/410.49
  6. Step 6: Final answer
    x = 394.59

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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.