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Finding the Fourth Proportional to 451.35, 677.16 and 177.57

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Solution

The fourth proportional to 451.35, 677.16 and 177.57 is: 266.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    451.35 : 677.16 = 177.57 : x
  2. Step 2: Convert to fraction form
    451.35/677.16 = 177.57/x
  3. Step 3: Cross multiply
    451.35x = 677.16 × 177.57
  4. Step 4: Simplify right side
    451.35x = 120,243.30
  5. Step 5: Solve for x
    x = 120,243.30/451.35
  6. Step 6: Final answer
    x = 266.41

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.