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Finding the Fourth Proportional to 508.89, 762.42 and 335.34

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Solution

The fourth proportional to 508.89, 762.42 and 335.34 is: 502.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    508.89 : 762.42 = 335.34 : x
  2. Step 2: Convert to fraction form
    508.89/762.42 = 335.34/x
  3. Step 3: Cross multiply
    508.89x = 762.42 × 335.34
  4. Step 4: Simplify right side
    508.89x = 255,669.92
  5. Step 5: Solve for x
    x = 255,669.92/508.89
  6. Step 6: Final answer
    x = 502.41

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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.