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Finding the Fourth Proportional to 335.87, 501.31 and 327.68

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Solution

The fourth proportional to 335.87, 501.31 and 327.68 is: 489.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    335.87 : 501.31 = 327.68 : x
  2. Step 2: Convert to fraction form
    335.87/501.31 = 327.68/x
  3. Step 3: Cross multiply
    335.87x = 501.31 × 327.68
  4. Step 4: Simplify right side
    335.87x = 164,265.94
  5. Step 5: Solve for x
    x = 164,265.94/335.87
  6. Step 6: Final answer
    x = 489.08

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.