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Finding the Fourth Proportional to 473.56, 653.32 and 326

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Solution

The fourth proportional to 473.56, 653.32 and 326 is: 449.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    473.56 : 653.32 = 326 : x
  2. Step 2: Convert to fraction form
    473.56/653.32 = 326/x
  3. Step 3: Cross multiply
    473.56x = 653.32 × 326
  4. Step 4: Simplify right side
    473.56x = 212,982.32
  5. Step 5: Solve for x
    x = 212,982.32/473.56
  6. Step 6: Final answer
    x = 449.75

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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.