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Finding the Fourth Proportional to 270.72, 373.64 and 177.43

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Solution

The fourth proportional to 270.72, 373.64 and 177.43 is: 244.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    270.72 : 373.64 = 177.43 : x
  2. Step 2: Convert to fraction form
    270.72/373.64 = 177.43/x
  3. Step 3: Cross multiply
    270.72x = 373.64 × 177.43
  4. Step 4: Simplify right side
    270.72x = 66,293.08
  5. Step 5: Solve for x
    x = 66,293.08/270.72
  6. Step 6: Final answer
    x = 244.88

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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.