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Finding the Fourth Proportional to 503.12, 693.96 and 363.80

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Solution

The fourth proportional to 503.12, 693.96 and 363.80 is: 501.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    503.12 : 693.96 = 363.80 : x
  2. Step 2: Convert to fraction form
    503.12/693.96 = 363.80/x
  3. Step 3: Cross multiply
    503.12x = 693.96 × 363.80
  4. Step 4: Simplify right side
    503.12x = 252,462.65
  5. Step 5: Solve for x
    x = 252,462.65/503.12
  6. Step 6: Final answer
    x = 501.79

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.