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Finding the Fourth Proportional to 308,879.80, 462,930.90 and 273,887.80

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Solution

The fourth proportional to 308,879.80, 462,930.90 and 273,887.80 is: 410,486.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,879.80 : 462,930.90 = 273,887.80 : x
  2. Step 2: Convert to fraction form
    308,879.80/462,930.90 = 273,887.80/x
  3. Step 3: Cross multiply
    308,879.80x = 462,930.90 × 273,887.80
  4. Step 4: Simplify right side
    308,879.80x = 126,791,125,753.02
  5. Step 5: Solve for x
    x = 126,791,125,753.02/308,879.80
  6. Step 6: Final answer
    x = 410,486.95

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1.5x scale

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.