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Finding the Fourth Proportional to 242.93, 335.24 and 144.69

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Solution

The fourth proportional to 242.93, 335.24 and 144.69 is: 199.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    242.93 : 335.24 = 144.69 : x
  2. Step 2: Convert to fraction form
    242.93/335.24 = 144.69/x
  3. Step 3: Cross multiply
    242.93x = 335.24 × 144.69
  4. Step 4: Simplify right side
    242.93x = 48,505.88
  5. Step 5: Solve for x
    x = 48,505.88/242.93
  6. Step 6: Final answer
    x = 199.67

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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.