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Finding the Fourth Proportional to 735.82, 1,103.71 and 242.45

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Solution

The fourth proportional to 735.82, 1,103.71 and 242.45 is: 363.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    735.82 : 1,103.71 = 242.45 : x
  2. Step 2: Convert to fraction form
    735.82/1,103.71 = 242.45/x
  3. Step 3: Cross multiply
    735.82x = 1,103.71 × 242.45
  4. Step 4: Simplify right side
    735.82x = 267,594.76
  5. Step 5: Solve for x
    x = 267,594.76/735.82
  6. Step 6: Final answer
    x = 363.67

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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.