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Finding the Fourth Proportional to 482.19, 664.43 and 451.95

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Solution

The fourth proportional to 482.19, 664.43 and 451.95 is: 622.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    482.19 : 664.43 = 451.95 : x
  2. Step 2: Convert to fraction form
    482.19/664.43 = 451.95/x
  3. Step 3: Cross multiply
    482.19x = 664.43 × 451.95
  4. Step 4: Simplify right side
    482.19x = 300,289.14
  5. Step 5: Solve for x
    x = 300,289.14/482.19
  6. Step 6: Final answer
    x = 622.76

Related Problems

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Half scale
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Double scale
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Similar ratio
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1.5x scale

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.