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Finding the Fourth Proportional to 244.64, 366.38 and 212.40

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Solution

The fourth proportional to 244.64, 366.38 and 212.40 is: 318.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    244.64 : 366.38 = 212.40 : x
  2. Step 2: Convert to fraction form
    244.64/366.38 = 212.40/x
  3. Step 3: Cross multiply
    244.64x = 366.38 × 212.40
  4. Step 4: Simplify right side
    244.64x = 77,818.05
  5. Step 5: Solve for x
    x = 77,818.05/244.64
  6. Step 6: Final answer
    x = 318.10

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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.