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Finding the Fourth Proportional to 244.40, 366.81 and 161.90

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Solution

The fourth proportional to 244.40, 366.81 and 161.90 is: 242.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    244.40 : 366.81 = 161.90 : x
  2. Step 2: Convert to fraction form
    244.40/366.81 = 161.90/x
  3. Step 3: Cross multiply
    244.40x = 366.81 × 161.90
  4. Step 4: Simplify right side
    244.40x = 59,384.70
  5. Step 5: Solve for x
    x = 59,384.70/244.40
  6. Step 6: Final answer
    x = 242.98

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.