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Finding the Fourth Proportional to 782.96, 1,174.01 and 234.99

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Solution

The fourth proportional to 782.96, 1,174.01 and 234.99 is: 352.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    782.96 : 1,174.01 = 234.99 : x
  2. Step 2: Convert to fraction form
    782.96/1,174.01 = 234.99/x
  3. Step 3: Cross multiply
    782.96x = 1,174.01 × 234.99
  4. Step 4: Simplify right side
    782.96x = 275,879.43
  5. Step 5: Solve for x
    x = 275,879.43/782.96
  6. Step 6: Final answer
    x = 352.36

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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.