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Finding the Fourth Proportional to 423.37, 634.81 and 176.29

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Solution

The fourth proportional to 423.37, 634.81 and 176.29 is: 264.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    423.37 : 634.81 = 176.29 : x
  2. Step 2: Convert to fraction form
    423.37/634.81 = 176.29/x
  3. Step 3: Cross multiply
    423.37x = 634.81 × 176.29
  4. Step 4: Simplify right side
    423.37x = 111,910.65
  5. Step 5: Solve for x
    x = 111,910.65/423.37
  6. Step 6: Final answer
    x = 264.33

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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.