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Finding the Fourth Proportional to 458.89, 633.24 and 251.89

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Solution

The fourth proportional to 458.89, 633.24 and 251.89 is: 347.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    458.89 : 633.24 = 251.89 : x
  2. Step 2: Convert to fraction form
    458.89/633.24 = 251.89/x
  3. Step 3: Cross multiply
    458.89x = 633.24 × 251.89
  4. Step 4: Simplify right side
    458.89x = 159,506.82
  5. Step 5: Solve for x
    x = 159,506.82/458.89
  6. Step 6: Final answer
    x = 347.59

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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.