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Finding the Fourth Proportional to 505.14, 757.43 and 158.38

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Solution

The fourth proportional to 505.14, 757.43 and 158.38 is: 237.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    505.14 : 757.43 = 158.38 : x
  2. Step 2: Convert to fraction form
    505.14/757.43 = 158.38/x
  3. Step 3: Cross multiply
    505.14x = 757.43 × 158.38
  4. Step 4: Simplify right side
    505.14x = 119,961.76
  5. Step 5: Solve for x
    x = 119,961.76/505.14
  6. Step 6: Final answer
    x = 237.48

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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.