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Finding the Fourth Proportional to 505.97, 758.98 and 231.94

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Solution

The fourth proportional to 505.97, 758.98 and 231.94 is: 347.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    505.97 : 758.98 = 231.94 : x
  2. Step 2: Convert to fraction form
    505.97/758.98 = 231.94/x
  3. Step 3: Cross multiply
    505.97x = 758.98 × 231.94
  4. Step 4: Simplify right side
    505.97x = 176,034.14
  5. Step 5: Solve for x
    x = 176,034.14/505.97
  6. Step 6: Final answer
    x = 347.92

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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.