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Finding the Fourth Proportional to 371.45, 557.28 and 234.29

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Solution

The fourth proportional to 371.45, 557.28 and 234.29 is: 351.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    371.45 : 557.28 = 234.29 : x
  2. Step 2: Convert to fraction form
    371.45/557.28 = 234.29/x
  3. Step 3: Cross multiply
    371.45x = 557.28 × 234.29
  4. Step 4: Simplify right side
    371.45x = 130,565.13
  5. Step 5: Solve for x
    x = 130,565.13/371.45
  6. Step 6: Final answer
    x = 351.50

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.