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Finding the Fourth Proportional to 270.23, 372.89 and 165.34

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Solution

The fourth proportional to 270.23, 372.89 and 165.34 is: 228.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    270.23 : 372.89 = 165.34 : x
  2. Step 2: Convert to fraction form
    270.23/372.89 = 165.34/x
  3. Step 3: Cross multiply
    270.23x = 372.89 × 165.34
  4. Step 4: Simplify right side
    270.23x = 61,650.94
  5. Step 5: Solve for x
    x = 61,650.94/270.23
  6. Step 6: Final answer
    x = 228.14

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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.