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Finding the Fourth Proportional to 453.09, 625.16 and 266.59

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Solution

The fourth proportional to 453.09, 625.16 and 266.59 is: 367.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    453.09 : 625.16 = 266.59 : x
  2. Step 2: Convert to fraction form
    453.09/625.16 = 266.59/x
  3. Step 3: Cross multiply
    453.09x = 625.16 × 266.59
  4. Step 4: Simplify right side
    453.09x = 166,660.29
  5. Step 5: Solve for x
    x = 166,660.29/453.09
  6. Step 6: Final answer
    x = 367.83

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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.