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Finding the Fourth Proportional to 503.74, 754.38 and 308.83

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Solution

The fourth proportional to 503.74, 754.38 and 308.83 is: 462.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    503.74 : 754.38 = 308.83 : x
  2. Step 2: Convert to fraction form
    503.74/754.38 = 308.83/x
  3. Step 3: Cross multiply
    503.74x = 754.38 × 308.83
  4. Step 4: Simplify right side
    503.74x = 232,975.18
  5. Step 5: Solve for x
    x = 232,975.18/503.74
  6. Step 6: Final answer
    x = 462.49

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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.