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Finding the Fourth Proportional to 408,661.38, 563,955.48 and 227,380.94

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Solution

The fourth proportional to 408,661.38, 563,955.48 and 227,380.94 is: 313,787.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,661.38 : 563,955.48 = 227,380.94 : x
  2. Step 2: Convert to fraction form
    408,661.38/563,955.48 = 227,380.94/x
  3. Step 3: Cross multiply
    408,661.38x = 563,955.48 × 227,380.94
  4. Step 4: Simplify right side
    408,661.38x = 128,232,727,160.55
  5. Step 5: Solve for x
    x = 128,232,727,160.55/408,661.38
  6. Step 6: Final answer
    x = 313,787.24

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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.