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Finding the Fourth Proportional to 503.42, 755.53 and 195.21

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Solution

The fourth proportional to 503.42, 755.53 and 195.21 is: 292.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    503.42 : 755.53 = 195.21 : x
  2. Step 2: Convert to fraction form
    503.42/755.53 = 195.21/x
  3. Step 3: Cross multiply
    503.42x = 755.53 × 195.21
  4. Step 4: Simplify right side
    503.42x = 147,486.52
  5. Step 5: Solve for x
    x = 147,486.52/503.42
  6. Step 6: Final answer
    x = 292.97

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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.