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Finding the Fourth Proportional to 245.23, 336.60 and 226.76

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Solution

The fourth proportional to 245.23, 336.60 and 226.76 is: 311.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    245.23 : 336.60 = 226.76 : x
  2. Step 2: Convert to fraction form
    245.23/336.60 = 226.76/x
  3. Step 3: Cross multiply
    245.23x = 336.60 × 226.76
  4. Step 4: Simplify right side
    245.23x = 76,327.42
  5. Step 5: Solve for x
    x = 76,327.42/245.23
  6. Step 6: Final answer
    x = 311.25

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.