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Finding the Fourth Proportional to 1,100.25, 1,651.14 and 450.99

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Solution

The fourth proportional to 1,100.25, 1,651.14 and 450.99 is: 676.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,100.25 : 1,651.14 = 450.99 : x
  2. Step 2: Convert to fraction form
    1,100.25/1,651.14 = 450.99/x
  3. Step 3: Cross multiply
    1,100.25x = 1,651.14 × 450.99
  4. Step 4: Simplify right side
    1,100.25x = 744,647.63
  5. Step 5: Solve for x
    x = 744,647.63/1,100.25
  6. Step 6: Final answer
    x = 676.80

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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.