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Finding the Fourth Proportional to 160.79, 222.14 and 149.99

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Solution

The fourth proportional to 160.79, 222.14 and 149.99 is: 207.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    160.79 : 222.14 = 149.99 : x
  2. Step 2: Convert to fraction form
    160.79/222.14 = 149.99/x
  3. Step 3: Cross multiply
    160.79x = 222.14 × 149.99
  4. Step 4: Simplify right side
    160.79x = 33,318.04
  5. Step 5: Solve for x
    x = 33,318.04/160.79
  6. Step 6: Final answer
    x = 207.22

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.