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Finding the Fourth Proportional to 451.63, 677.44 and 109.63

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Solution

The fourth proportional to 451.63, 677.44 and 109.63 is: 164.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    451.63 : 677.44 = 109.63 : x
  2. Step 2: Convert to fraction form
    451.63/677.44 = 109.63/x
  3. Step 3: Cross multiply
    451.63x = 677.44 × 109.63
  4. Step 4: Simplify right side
    451.63x = 74,264.09
  5. Step 5: Solve for x
    x = 74,264.09/451.63
  6. Step 6: Final answer
    x = 164.44

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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.