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Finding the Fourth Proportional to 450.63, 676.21 and 176.75

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Solution

The fourth proportional to 450.63, 676.21 and 176.75 is: 265.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    450.63 : 676.21 = 176.75 : x
  2. Step 2: Convert to fraction form
    450.63/676.21 = 176.75/x
  3. Step 3: Cross multiply
    450.63x = 676.21 × 176.75
  4. Step 4: Simplify right side
    450.63x = 119,520.12
  5. Step 5: Solve for x
    x = 119,520.12/450.63
  6. Step 6: Final answer
    x = 265.23

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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.