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Finding the Fourth Proportional to 452.72, 624.83 and 266.22

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Solution

The fourth proportional to 452.72, 624.83 and 266.22 is: 367.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    452.72 : 624.83 = 266.22 : x
  2. Step 2: Convert to fraction form
    452.72/624.83 = 266.22/x
  3. Step 3: Cross multiply
    452.72x = 624.83 × 266.22
  4. Step 4: Simplify right side
    452.72x = 166,340.91
  5. Step 5: Solve for x
    x = 166,340.91/452.72
  6. Step 6: Final answer
    x = 367.42

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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.