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Finding the Fourth Proportional to 482.96, 664.00 and 480.03

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Solution

The fourth proportional to 482.96, 664.00 and 480.03 is: 659.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    482.96 : 664.00 = 480.03 : x
  2. Step 2: Convert to fraction form
    482.96/664.00 = 480.03/x
  3. Step 3: Cross multiply
    482.96x = 664.00 × 480.03
  4. Step 4: Simplify right side
    482.96x = 318,736.23
  5. Step 5: Solve for x
    x = 318,736.23/482.96
  6. Step 6: Final answer
    x = 659.96

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Double scale
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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.