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Finding the Fourth Proportional to 160.65, 241.52 and 142.43

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Solution

The fourth proportional to 160.65, 241.52 and 142.43 is: 214.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    160.65 : 241.52 = 142.43 : x
  2. Step 2: Convert to fraction form
    160.65/241.52 = 142.43/x
  3. Step 3: Cross multiply
    160.65x = 241.52 × 142.43
  4. Step 4: Simplify right side
    160.65x = 34,397.77
  5. Step 5: Solve for x
    x = 34,397.77/160.65
  6. Step 6: Final answer
    x = 214.12

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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.