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Finding the Fourth Proportional to 458.89, 633.28 and 262.42

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Solution

The fourth proportional to 458.89, 633.28 and 262.42 is: 362.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    458.89 : 633.28 = 262.42 : x
  2. Step 2: Convert to fraction form
    458.89/633.28 = 262.42/x
  3. Step 3: Cross multiply
    458.89x = 633.28 × 262.42
  4. Step 4: Simplify right side
    458.89x = 166,185.34
  5. Step 5: Solve for x
    x = 166,185.34/458.89
  6. Step 6: Final answer
    x = 362.15

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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.