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Finding the Fourth Proportional to 244.13, 366.19 and 90

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Solution

The fourth proportional to 244.13, 366.19 and 90 is: 135

Step by Step Solution

  1. Step 1: Write the proportion equation
    244.13 : 366.19 = 90 : x
  2. Step 2: Convert to fraction form
    244.13/366.19 = 90/x
  3. Step 3: Cross multiply
    244.13x = 366.19 × 90
  4. Step 4: Simplify right side
    244.13x = 32,956.88
  5. Step 5: Solve for x
    x = 32,956.88/244.13
  6. Step 6: Final answer
    x = 135

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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.