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Finding the Fourth Proportional to 308,786.88, 426,231 and 181,500.24

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Solution

The fourth proportional to 308,786.88, 426,231 and 181,500.24 is: 250,532.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,786.88 : 426,231 = 181,500.24 : x
  2. Step 2: Convert to fraction form
    308,786.88/426,231 = 181,500.24/x
  3. Step 3: Cross multiply
    308,786.88x = 426,231 × 181,500.24
  4. Step 4: Simplify right side
    308,786.88x = 77,361,028,795.44
  5. Step 5: Solve for x
    x = 77,361,028,795.44/308,786.88
  6. Step 6: Final answer
    x = 250,532.11

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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.