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Finding the Fourth Proportional to 284,454.60, 426,698.28 and 106,963.15

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Solution

The fourth proportional to 284,454.60, 426,698.28 and 106,963.15 is: 160,450.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,454.60 : 426,698.28 = 106,963.15 : x
  2. Step 2: Convert to fraction form
    284,454.60/426,698.28 = 106,963.15/x
  3. Step 3: Cross multiply
    284,454.60x = 426,698.28 × 106,963.15
  4. Step 4: Simplify right side
    284,454.60x = 45,640,992,128.38
  5. Step 5: Solve for x
    x = 45,640,992,128.38/284,454.60
  6. Step 6: Final answer
    x = 160,450.88

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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.