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Finding the Fourth Proportional to 308,101.95, 425,107.83 and 178,963.68

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Solution

The fourth proportional to 308,101.95, 425,107.83 and 178,963.68 is: 246,927.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,101.95 : 425,107.83 = 178,963.68 : x
  2. Step 2: Convert to fraction form
    308,101.95/425,107.83 = 178,963.68/x
  3. Step 3: Cross multiply
    308,101.95x = 425,107.83 × 178,963.68
  4. Step 4: Simplify right side
    308,101.95x = 76,078,861,653.61
  5. Step 5: Solve for x
    x = 76,078,861,653.61/308,101.95
  6. Step 6: Final answer
    x = 246,927.56

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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.