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Finding the Fourth Proportional to 635.73, 953.50 and 219.32

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Solution

The fourth proportional to 635.73, 953.50 and 219.32 is: 328.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    635.73 : 953.50 = 219.32 : x
  2. Step 2: Convert to fraction form
    635.73/953.50 = 219.32/x
  3. Step 3: Cross multiply
    635.73x = 953.50 × 219.32
  4. Step 4: Simplify right side
    635.73x = 209,123.46
  5. Step 5: Solve for x
    x = 209,123.46/635.73
  6. Step 6: Final answer
    x = 328.95

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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.