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Finding the Fourth Proportional to 159.39, 220.05 and 150.93

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Solution

The fourth proportional to 159.39, 220.05 and 150.93 is: 208.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    159.39 : 220.05 = 150.93 : x
  2. Step 2: Convert to fraction form
    159.39/220.05 = 150.93/x
  3. Step 3: Cross multiply
    159.39x = 220.05 × 150.93
  4. Step 4: Simplify right side
    159.39x = 33,212.15
  5. Step 5: Solve for x
    x = 33,212.15/159.39
  6. Step 6: Final answer
    x = 208.37

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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.