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Finding the Fourth Proportional to 160.56, 222.39 and 148.71

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Solution

The fourth proportional to 160.56, 222.39 and 148.71 is: 205.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    160.56 : 222.39 = 148.71 : x
  2. Step 2: Convert to fraction form
    160.56/222.39 = 148.71/x
  3. Step 3: Cross multiply
    160.56x = 222.39 × 148.71
  4. Step 4: Simplify right side
    160.56x = 33,071.62
  5. Step 5: Solve for x
    x = 33,071.62/160.56
  6. Step 6: Final answer
    x = 205.98

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.