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Finding the Fourth Proportional to 159.03, 237.60 and 131.67

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Solution

The fourth proportional to 159.03, 237.60 and 131.67 is: 196.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    159.03 : 237.60 = 131.67 : x
  2. Step 2: Convert to fraction form
    159.03/237.60 = 131.67/x
  3. Step 3: Cross multiply
    159.03x = 237.60 × 131.67
  4. Step 4: Simplify right side
    159.03x = 31,284.79
  5. Step 5: Solve for x
    x = 31,284.79/159.03
  6. Step 6: Final answer
    x = 196.72

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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.