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Finding the Fourth Proportional to 314.46, 433.98 and 216.27

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Solution

The fourth proportional to 314.46, 433.98 and 216.27 is: 298.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    314.46 : 433.98 = 216.27 : x
  2. Step 2: Convert to fraction form
    314.46/433.98 = 216.27/x
  3. Step 3: Cross multiply
    314.46x = 433.98 × 216.27
  4. Step 4: Simplify right side
    314.46x = 93,856.85
  5. Step 5: Solve for x
    x = 93,856.85/314.46
  6. Step 6: Final answer
    x = 298.47

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.