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Finding the Fourth Proportional to 371.54, 559.46 and 307.16

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Solution

The fourth proportional to 371.54, 559.46 and 307.16 is: 462.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    371.54 : 559.46 = 307.16 : x
  2. Step 2: Convert to fraction form
    371.54/559.46 = 307.16/x
  3. Step 3: Cross multiply
    371.54x = 559.46 × 307.16
  4. Step 4: Simplify right side
    371.54x = 171,843.73
  5. Step 5: Solve for x
    x = 171,843.73/371.54
  6. Step 6: Final answer
    x = 462.52

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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.