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Finding the Fourth Proportional to 352,429.49, 486,330.54 and 199,498.73

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Solution

The fourth proportional to 352,429.49, 486,330.54 and 199,498.73 is: 275,295.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,429.49 : 486,330.54 = 199,498.73 : x
  2. Step 2: Convert to fraction form
    352,429.49/486,330.54 = 199,498.73/x
  3. Step 3: Cross multiply
    352,429.49x = 486,330.54 × 199,498.73
  4. Step 4: Simplify right side
    352,429.49x = 97,022,322,658.56
  5. Step 5: Solve for x
    x = 97,022,322,658.56/352,429.49
  6. Step 6: Final answer
    x = 275,295.70

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Double scale
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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.