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Finding the Fourth Proportional to 270.33, 372.96 and 159.81

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Solution

The fourth proportional to 270.33, 372.96 and 159.81 is: 220.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    270.33 : 372.96 = 159.81 : x
  2. Step 2: Convert to fraction form
    270.33/372.96 = 159.81/x
  3. Step 3: Cross multiply
    270.33x = 372.96 × 159.81
  4. Step 4: Simplify right side
    270.33x = 59,602.74
  5. Step 5: Solve for x
    x = 59,602.74/270.33
  6. Step 6: Final answer
    x = 220.48

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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.