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Finding the Fourth Proportional to 169.94, 253.15 and 160.63

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Solution

The fourth proportional to 169.94, 253.15 and 160.63 is: 239.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    169.94 : 253.15 = 160.63 : x
  2. Step 2: Convert to fraction form
    169.94/253.15 = 160.63/x
  3. Step 3: Cross multiply
    169.94x = 253.15 × 160.63
  4. Step 4: Simplify right side
    169.94x = 40,662.45
  5. Step 5: Solve for x
    x = 40,662.45/169.94
  6. Step 6: Final answer
    x = 239.27

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.