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Finding the Fourth Proportional to 272.69, 377.30 and 237.79

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Solution

The fourth proportional to 272.69, 377.30 and 237.79 is: 329.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    272.69 : 377.30 = 237.79 : x
  2. Step 2: Convert to fraction form
    272.69/377.30 = 237.79/x
  3. Step 3: Cross multiply
    272.69x = 377.30 × 237.79
  4. Step 4: Simplify right side
    272.69x = 89,718.17
  5. Step 5: Solve for x
    x = 89,718.17/272.69
  6. Step 6: Final answer
    x = 329.01

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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.