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Finding the Fourth Proportional to 158.69, 236.39 and 151.67

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Solution

The fourth proportional to 158.69, 236.39 and 151.67 is: 225.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    158.69 : 236.39 = 151.67 : x
  2. Step 2: Convert to fraction form
    158.69/236.39 = 151.67/x
  3. Step 3: Cross multiply
    158.69x = 236.39 × 151.67
  4. Step 4: Simplify right side
    158.69x = 35,853.10
  5. Step 5: Solve for x
    x = 35,853.10/158.69
  6. Step 6: Final answer
    x = 225.93

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.