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Finding the Fourth Proportional to 503.61, 755.61 and 195.48

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Solution

The fourth proportional to 503.61, 755.61 and 195.48 is: 293.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    503.61 : 755.61 = 195.48 : x
  2. Step 2: Convert to fraction form
    503.61/755.61 = 195.48/x
  3. Step 3: Cross multiply
    503.61x = 755.61 × 195.48
  4. Step 4: Simplify right side
    503.61x = 147,709.48
  5. Step 5: Solve for x
    x = 147,709.48/503.61
  6. Step 6: Final answer
    x = 293.30

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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.