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Finding the Fourth Proportional to 244.38, 366.57 and 90.30

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Solution

The fourth proportional to 244.38, 366.57 and 90.30 is: 135.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    244.38 : 366.57 = 90.30 : x
  2. Step 2: Convert to fraction form
    244.38/366.57 = 90.30/x
  3. Step 3: Cross multiply
    244.38x = 366.57 × 90.30
  4. Step 4: Simplify right side
    244.38x = 33,101.27
  5. Step 5: Solve for x
    x = 33,101.27/244.38
  6. Step 6: Final answer
    x = 135.45

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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.