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Finding the Fourth Proportional to 484.28, 668.38 and 451.50

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Solution

The fourth proportional to 484.28, 668.38 and 451.50 is: 623.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    484.28 : 668.38 = 451.50 : x
  2. Step 2: Convert to fraction form
    484.28/668.38 = 451.50/x
  3. Step 3: Cross multiply
    484.28x = 668.38 × 451.50
  4. Step 4: Simplify right side
    484.28x = 301,773.57
  5. Step 5: Solve for x
    x = 301,773.57/484.28
  6. Step 6: Final answer
    x = 623.14

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.