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Finding the Fourth Proportional to 624.43, 936.90 and 335.53

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Solution

The fourth proportional to 624.43, 936.90 and 335.53 is: 503.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    624.43 : 936.90 = 335.53 : x
  2. Step 2: Convert to fraction form
    624.43/936.90 = 335.53/x
  3. Step 3: Cross multiply
    624.43x = 936.90 × 335.53
  4. Step 4: Simplify right side
    624.43x = 314,353.37
  5. Step 5: Solve for x
    x = 314,353.37/624.43
  6. Step 6: Final answer
    x = 503.43

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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.