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Finding the Fourth Proportional to 553.18, 827.34 and 335.30

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Solution

The fourth proportional to 553.18, 827.34 and 335.30 is: 501.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    553.18 : 827.34 = 335.30 : x
  2. Step 2: Convert to fraction form
    553.18/827.34 = 335.30/x
  3. Step 3: Cross multiply
    553.18x = 827.34 × 335.30
  4. Step 4: Simplify right side
    553.18x = 277,407.10
  5. Step 5: Solve for x
    x = 277,407.10/553.18
  6. Step 6: Final answer
    x = 501.48

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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.