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Finding the Fourth Proportional to 735.30, 1,102.14 and 445.86

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Solution

The fourth proportional to 735.30, 1,102.14 and 445.86 is: 668.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    735.30 : 1,102.14 = 445.86 : x
  2. Step 2: Convert to fraction form
    735.30/1,102.14 = 445.86/x
  3. Step 3: Cross multiply
    735.30x = 1,102.14 × 445.86
  4. Step 4: Simplify right side
    735.30x = 491,400.14
  5. Step 5: Solve for x
    x = 491,400.14/735.30
  6. Step 6: Final answer
    x = 668.30

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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.