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Finding the Fourth Proportional to 356,355.60, 491,770.89 and 195,216.48

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Solution

The fourth proportional to 356,355.60, 491,770.89 and 195,216.48 is: 269,398.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,355.60 : 491,770.89 = 195,216.48 : x
  2. Step 2: Convert to fraction form
    356,355.60/491,770.89 = 195,216.48/x
  3. Step 3: Cross multiply
    356,355.60x = 491,770.89 × 195,216.48
  4. Step 4: Simplify right side
    356,355.60x = 96,001,782,112.27
  5. Step 5: Solve for x
    x = 96,001,782,112.27/356,355.60
  6. Step 6: Final answer
    x = 269,398.83

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1.5x scale

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.