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Finding the Fourth Proportional to 160.68, 240.64 and 92.24

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Solution

The fourth proportional to 160.68, 240.64 and 92.24 is: 138.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    160.68 : 240.64 = 92.24 : x
  2. Step 2: Convert to fraction form
    160.68/240.64 = 92.24/x
  3. Step 3: Cross multiply
    160.68x = 240.64 × 92.24
  4. Step 4: Simplify right side
    160.68x = 22,196.63
  5. Step 5: Solve for x
    x = 22,196.63/160.68
  6. Step 6: Final answer
    x = 138.14

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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.