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Finding the Fourth Proportional to 482.23, 665.24 and 295.66

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Solution

The fourth proportional to 482.23, 665.24 and 295.66 is: 407.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    482.23 : 665.24 = 295.66 : x
  2. Step 2: Convert to fraction form
    482.23/665.24 = 295.66/x
  3. Step 3: Cross multiply
    482.23x = 665.24 × 295.66
  4. Step 4: Simplify right side
    482.23x = 196,684.86
  5. Step 5: Solve for x
    x = 196,684.86/482.23
  6. Step 6: Final answer
    x = 407.87

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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.