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Finding the Fourth Proportional to 160.70, 242.22 and 157.05

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Solution

The fourth proportional to 160.70, 242.22 and 157.05 is: 236.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    160.70 : 242.22 = 157.05 : x
  2. Step 2: Convert to fraction form
    160.70/242.22 = 157.05/x
  3. Step 3: Cross multiply
    160.70x = 242.22 × 157.05
  4. Step 4: Simplify right side
    160.70x = 38,040.65
  5. Step 5: Solve for x
    x = 38,040.65/160.70
  6. Step 6: Final answer
    x = 236.73

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.