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Finding the Fourth Proportional to 244.24, 336.90 and 156.80

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Solution

The fourth proportional to 244.24, 336.90 and 156.80 is: 216.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    244.24 : 336.90 = 156.80 : x
  2. Step 2: Convert to fraction form
    244.24/336.90 = 156.80/x
  3. Step 3: Cross multiply
    244.24x = 336.90 × 156.80
  4. Step 4: Simplify right side
    244.24x = 52,825.92
  5. Step 5: Solve for x
    x = 52,825.92/244.24
  6. Step 6: Final answer
    x = 216.29

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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.