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Finding the Fourth Proportional to 553.54, 830.31 and 264.82

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Solution

The fourth proportional to 553.54, 830.31 and 264.82 is: 397.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    553.54 : 830.31 = 264.82 : x
  2. Step 2: Convert to fraction form
    553.54/830.31 = 264.82/x
  3. Step 3: Cross multiply
    553.54x = 830.31 × 264.82
  4. Step 4: Simplify right side
    553.54x = 219,882.69
  5. Step 5: Solve for x
    x = 219,882.69/553.54
  6. Step 6: Final answer
    x = 397.23

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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.