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Finding the Fourth Proportional to 245.19, 366.22 and 201.61

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Solution

The fourth proportional to 245.19, 366.22 and 201.61 is: 301.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    245.19 : 366.22 = 201.61 : x
  2. Step 2: Convert to fraction form
    245.19/366.22 = 201.61/x
  3. Step 3: Cross multiply
    245.19x = 366.22 × 201.61
  4. Step 4: Simplify right side
    245.19x = 73,833.61
  5. Step 5: Solve for x
    x = 73,833.61/245.19
  6. Step 6: Final answer
    x = 301.13

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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.