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Finding the Fourth Proportional to 371.44, 559.78 and 336.76

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Solution

The fourth proportional to 371.44, 559.78 and 336.76 is: 507.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    371.44 : 559.78 = 336.76 : x
  2. Step 2: Convert to fraction form
    371.44/559.78 = 336.76/x
  3. Step 3: Cross multiply
    371.44x = 559.78 × 336.76
  4. Step 4: Simplify right side
    371.44x = 188,511.51
  5. Step 5: Solve for x
    x = 188,511.51/371.44
  6. Step 6: Final answer
    x = 507.52

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.