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Finding the Fourth Proportional to 371.64, 557.79 and 176.73

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Solution

The fourth proportional to 371.64, 557.79 and 176.73 is: 265.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    371.64 : 557.79 = 176.73 : x
  2. Step 2: Convert to fraction form
    371.64/557.79 = 176.73/x
  3. Step 3: Cross multiply
    371.64x = 557.79 × 176.73
  4. Step 4: Simplify right side
    371.64x = 98,578.23
  5. Step 5: Solve for x
    x = 98,578.23/371.64
  6. Step 6: Final answer
    x = 265.25

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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.