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Finding the Fourth Proportional to 493.05, 680.34 and 296.46

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Solution

The fourth proportional to 493.05, 680.34 and 296.46 is: 409.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    493.05 : 680.34 = 296.46 : x
  2. Step 2: Convert to fraction form
    493.05/680.34 = 296.46/x
  3. Step 3: Cross multiply
    493.05x = 680.34 × 296.46
  4. Step 4: Simplify right side
    493.05x = 201,693.60
  5. Step 5: Solve for x
    x = 201,693.60/493.05
  6. Step 6: Final answer
    x = 409.07

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.