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Finding the Fourth Proportional to 462.51, 638.24 and 263.34

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Solution

The fourth proportional to 462.51, 638.24 and 263.34 is: 363.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    462.51 : 638.24 = 263.34 : x
  2. Step 2: Convert to fraction form
    462.51/638.24 = 263.34/x
  3. Step 3: Cross multiply
    462.51x = 638.24 × 263.34
  4. Step 4: Simplify right side
    462.51x = 168,069.61
  5. Step 5: Solve for x
    x = 168,069.61/462.51
  6. Step 6: Final answer
    x = 363.39

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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.