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Finding the Fourth Proportional to 253.03, 377.61 and 225.69

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Solution

The fourth proportional to 253.03, 377.61 and 225.69 is: 336.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    253.03 : 377.61 = 225.69 : x
  2. Step 2: Convert to fraction form
    253.03/377.61 = 225.69/x
  3. Step 3: Cross multiply
    253.03x = 377.61 × 225.69
  4. Step 4: Simplify right side
    253.03x = 85,222.80
  5. Step 5: Solve for x
    x = 85,222.80/253.03
  6. Step 6: Final answer
    x = 336.81

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Why These Related Problems?

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