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Finding the Fourth Proportional to 531.02, 796.64 and 165.75

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Solution

The fourth proportional to 531.02, 796.64 and 165.75 is: 248.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    531.02 : 796.64 = 165.75 : x
  2. Step 2: Convert to fraction form
    531.02/796.64 = 165.75/x
  3. Step 3: Cross multiply
    531.02x = 796.64 × 165.75
  4. Step 4: Simplify right side
    531.02x = 132,042.25
  5. Step 5: Solve for x
    x = 132,042.25/531.02
  6. Step 6: Final answer
    x = 248.66

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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.