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Finding the Fourth Proportional to 422.18, 582.41 and 264.74

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Solution

The fourth proportional to 422.18, 582.41 and 264.74 is: 365.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    422.18 : 582.41 = 264.74 : x
  2. Step 2: Convert to fraction form
    422.18/582.41 = 264.74/x
  3. Step 3: Cross multiply
    422.18x = 582.41 × 264.74
  4. Step 4: Simplify right side
    422.18x = 154,186.11
  5. Step 5: Solve for x
    x = 154,186.11/422.18
  6. Step 6: Final answer
    x = 365.21

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.