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Finding the Fourth Proportional to 453.44, 625.78 and 266.92

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Solution

The fourth proportional to 453.44, 625.78 and 266.92 is: 368.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    453.44 : 625.78 = 266.92 : x
  2. Step 2: Convert to fraction form
    453.44/625.78 = 266.92/x
  3. Step 3: Cross multiply
    453.44x = 625.78 × 266.92
  4. Step 4: Simplify right side
    453.44x = 167,033.20
  5. Step 5: Solve for x
    x = 167,033.20/453.44
  6. Step 6: Final answer
    x = 368.37

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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.