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Finding the Fourth Proportional to 308,086.20, 461,351.70 and 245,878.20

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Solution

The fourth proportional to 308,086.20, 461,351.70 and 245,878.20 is: 368,196.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,086.20 : 461,351.70 = 245,878.20 : x
  2. Step 2: Convert to fraction form
    308,086.20/461,351.70 = 245,878.20/x
  3. Step 3: Cross multiply
    308,086.20x = 461,351.70 × 245,878.20
  4. Step 4: Simplify right side
    308,086.20x = 113,436,325,562.94
  5. Step 5: Solve for x
    x = 113,436,325,562.94/308,086.20
  6. Step 6: Final answer
    x = 368,196.71

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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.