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Finding the Fourth Proportional to 503.70, 696 and 372.48

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Solution

The fourth proportional to 503.70, 696 and 372.48 is: 514.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    503.70 : 696 = 372.48 : x
  2. Step 2: Convert to fraction form
    503.70/696 = 372.48/x
  3. Step 3: Cross multiply
    503.70x = 696 × 372.48
  4. Step 4: Simplify right side
    503.70x = 259,246.08
  5. Step 5: Solve for x
    x = 259,246.08/503.70
  6. Step 6: Final answer
    x = 514.68

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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.