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Finding the Fourth Proportional to 655.25, 983.56 and 482.11

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Solution

The fourth proportional to 655.25, 983.56 and 482.11 is: 723.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    655.25 : 983.56 = 482.11 : x
  2. Step 2: Convert to fraction form
    655.25/983.56 = 482.11/x
  3. Step 3: Cross multiply
    655.25x = 983.56 × 482.11
  4. Step 4: Simplify right side
    655.25x = 474,181.70
  5. Step 5: Solve for x
    x = 474,181.70/655.25
  6. Step 6: Final answer
    x = 723.67

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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.