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Finding the Fourth Proportional to 244.16, 336.48 and 166.40

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Solution

The fourth proportional to 244.16, 336.48 and 166.40 is: 229.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    244.16 : 336.48 = 166.40 : x
  2. Step 2: Convert to fraction form
    244.16/336.48 = 166.40/x
  3. Step 3: Cross multiply
    244.16x = 336.48 × 166.40
  4. Step 4: Simplify right side
    244.16x = 55,990.27
  5. Step 5: Solve for x
    x = 55,990.27/244.16
  6. Step 6: Final answer
    x = 229.32

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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.