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Finding the Fourth Proportional to 491.79, 736.61 and 234.75

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Solution

The fourth proportional to 491.79, 736.61 and 234.75 is: 351.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    491.79 : 736.61 = 234.75 : x
  2. Step 2: Convert to fraction form
    491.79/736.61 = 234.75/x
  3. Step 3: Cross multiply
    491.79x = 736.61 × 234.75
  4. Step 4: Simplify right side
    491.79x = 172,918.02
  5. Step 5: Solve for x
    x = 172,918.02/491.79
  6. Step 6: Final answer
    x = 351.61

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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.