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Finding the Fourth Proportional to 335.80, 500.40 and 324.79

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Solution

The fourth proportional to 335.80, 500.40 and 324.79 is: 483.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    335.80 : 500.40 = 324.79 : x
  2. Step 2: Convert to fraction form
    335.80/500.40 = 324.79/x
  3. Step 3: Cross multiply
    335.80x = 500.40 × 324.79
  4. Step 4: Simplify right side
    335.80x = 162,520.79
  5. Step 5: Solve for x
    x = 162,520.79/335.80
  6. Step 6: Final answer
    x = 483.99

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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.