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Finding the Fourth Proportional to 340.71, 508.97 and 272.37

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Solution

The fourth proportional to 340.71, 508.97 and 272.37 is: 406.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    340.71 : 508.97 = 272.37 : x
  2. Step 2: Convert to fraction form
    340.71/508.97 = 272.37/x
  3. Step 3: Cross multiply
    340.71x = 508.97 × 272.37
  4. Step 4: Simplify right side
    340.71x = 138,628.16
  5. Step 5: Solve for x
    x = 138,628.16/340.71
  6. Step 6: Final answer
    x = 406.88

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.