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Finding the Fourth Proportional to 521.33, 719.16 and 322.27

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Solution

The fourth proportional to 521.33, 719.16 and 322.27 is: 444.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    521.33 : 719.16 = 322.27 : x
  2. Step 2: Convert to fraction form
    521.33/719.16 = 322.27/x
  3. Step 3: Cross multiply
    521.33x = 719.16 × 322.27
  4. Step 4: Simplify right side
    521.33x = 231,763.38
  5. Step 5: Solve for x
    x = 231,763.38/521.33
  6. Step 6: Final answer
    x = 444.56

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Double scale
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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.