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Finding the Fourth Proportional to 253.13, 377.73 and 225.79

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Solution

The fourth proportional to 253.13, 377.73 and 225.79 is: 336.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    253.13 : 377.73 = 225.79 : x
  2. Step 2: Convert to fraction form
    253.13/377.73 = 225.79/x
  3. Step 3: Cross multiply
    253.13x = 377.73 × 225.79
  4. Step 4: Simplify right side
    253.13x = 85,286.71
  5. Step 5: Solve for x
    x = 85,286.71/253.13
  6. Step 6: Final answer
    x = 336.94

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These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.