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Finding the Fourth Proportional to 480.75, 663.68 and 451.95

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Solution

The fourth proportional to 480.75, 663.68 and 451.95 is: 623.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    480.75 : 663.68 = 451.95 : x
  2. Step 2: Convert to fraction form
    480.75/663.68 = 451.95/x
  3. Step 3: Cross multiply
    480.75x = 663.68 × 451.95
  4. Step 4: Simplify right side
    480.75x = 299,947.92
  5. Step 5: Solve for x
    x = 299,947.92/480.75
  6. Step 6: Final answer
    x = 623.92

Related Problems

Find fourth proportional to 240.38, 331.84 and 225.98
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Double scale
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Similar ratio
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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.