Home / 308,550.20-462,825.30-257,811.80

Finding the Fourth Proportional to 308,550.20, 462,825.30 and 257,811.80

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Solution

The fourth proportional to 308,550.20, 462,825.30 and 257,811.80 is: 386,717.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,550.20 : 462,825.30 = 257,811.80 : x
  2. Step 2: Convert to fraction form
    308,550.20/462,825.30 = 257,811.80/x
  3. Step 3: Cross multiply
    308,550.20x = 462,825.30 × 257,811.80
  4. Step 4: Simplify right side
    308,550.20x = 119,321,823,678.54
  5. Step 5: Solve for x
    x = 119,321,823,678.54/308,550.20
  6. Step 6: Final answer
    x = 386,717.70

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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.