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Finding the Fourth Proportional to 503.82, 755.52 and 157.03

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Solution

The fourth proportional to 503.82, 755.52 and 157.03 is: 235.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    503.82 : 755.52 = 157.03 : x
  2. Step 2: Convert to fraction form
    503.82/755.52 = 157.03/x
  3. Step 3: Cross multiply
    503.82x = 755.52 × 157.03
  4. Step 4: Simplify right side
    503.82x = 118,640.80
  5. Step 5: Solve for x
    x = 118,640.80/503.82
  6. Step 6: Final answer
    x = 235.48

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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.