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Finding the Fourth Proportional to 371.52, 557.37 and 154.98

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Solution

The fourth proportional to 371.52, 557.37 and 154.98 is: 232.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    371.52 : 557.37 = 154.98 : x
  2. Step 2: Convert to fraction form
    371.52/557.37 = 154.98/x
  3. Step 3: Cross multiply
    371.52x = 557.37 × 154.98
  4. Step 4: Simplify right side
    371.52x = 86,381.20
  5. Step 5: Solve for x
    x = 86,381.20/371.52
  6. Step 6: Final answer
    x = 232.51

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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.