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Finding the Fourth Proportional to 1,467, 2,200.50 and 645.48

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Solution

The fourth proportional to 1,467, 2,200.50 and 645.48 is: 968.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,467 : 2,200.50 = 645.48 : x
  2. Step 2: Convert to fraction form
    1,467/2,200.50 = 645.48/x
  3. Step 3: Cross multiply
    1,467x = 2,200.50 × 645.48
  4. Step 4: Simplify right side
    1,467x = 1,420,378.74
  5. Step 5: Solve for x
    x = 1,420,378.74/1,467
  6. Step 6: Final answer
    x = 968.22

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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.