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Finding the Fourth Proportional to 244.56, 336.74 and 209.32

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Solution

The fourth proportional to 244.56, 336.74 and 209.32 is: 288.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    244.56 : 336.74 = 209.32 : x
  2. Step 2: Convert to fraction form
    244.56/336.74 = 209.32/x
  3. Step 3: Cross multiply
    244.56x = 336.74 × 209.32
  4. Step 4: Simplify right side
    244.56x = 70,486.42
  5. Step 5: Solve for x
    x = 70,486.42/244.56
  6. Step 6: Final answer
    x = 288.22

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.