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Finding the Fourth Proportional to 159.93, 240.29 and 131.49

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Solution

The fourth proportional to 159.93, 240.29 and 131.49 is: 197.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    159.93 : 240.29 = 131.49 : x
  2. Step 2: Convert to fraction form
    159.93/240.29 = 131.49/x
  3. Step 3: Cross multiply
    159.93x = 240.29 × 131.49
  4. Step 4: Simplify right side
    159.93x = 31,595.07
  5. Step 5: Solve for x
    x = 31,595.07/159.93
  6. Step 6: Final answer
    x = 197.56

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.