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Finding the Fourth Proportional to 410.75, 566.91 and 261.27

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Solution

The fourth proportional to 410.75, 566.91 and 261.27 is: 360.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    410.75 : 566.91 = 261.27 : x
  2. Step 2: Convert to fraction form
    410.75/566.91 = 261.27/x
  3. Step 3: Cross multiply
    410.75x = 566.91 × 261.27
  4. Step 4: Simplify right side
    410.75x = 148,116.58
  5. Step 5: Solve for x
    x = 148,116.58/410.75
  6. Step 6: Final answer
    x = 360.60

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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.