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Finding the Fourth Proportional to 553.18, 763.37 and 301.10

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Solution

The fourth proportional to 553.18, 763.37 and 301.10 is: 415.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    553.18 : 763.37 = 301.10 : x
  2. Step 2: Convert to fraction form
    553.18/763.37 = 301.10/x
  3. Step 3: Cross multiply
    553.18x = 763.37 × 301.10
  4. Step 4: Simplify right side
    553.18x = 229,853.31
  5. Step 5: Solve for x
    x = 229,853.31/553.18
  6. Step 6: Final answer
    x = 415.51

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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.