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Finding the Fourth Proportional to 335.98, 503.16 and 243.64

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Solution

The fourth proportional to 335.98, 503.16 and 243.64 is: 364.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    335.98 : 503.16 = 243.64 : x
  2. Step 2: Convert to fraction form
    335.98/503.16 = 243.64/x
  3. Step 3: Cross multiply
    335.98x = 503.16 × 243.64
  4. Step 4: Simplify right side
    335.98x = 122,589.90
  5. Step 5: Solve for x
    x = 122,589.90/335.98
  6. Step 6: Final answer
    x = 364.87

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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.