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Finding the Fourth Proportional to 371.56, 512.94 and 298.24

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Solution

The fourth proportional to 371.56, 512.94 and 298.24 is: 411.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    371.56 : 512.94 = 298.24 : x
  2. Step 2: Convert to fraction form
    371.56/512.94 = 298.24/x
  3. Step 3: Cross multiply
    371.56x = 512.94 × 298.24
  4. Step 4: Simplify right side
    371.56x = 152,979.23
  5. Step 5: Solve for x
    x = 152,979.23/371.56
  6. Step 6: Final answer
    x = 411.72

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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.