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Finding the Fourth Proportional to 165,122.60, 247,027.80 and 143,179.70

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Solution

The fourth proportional to 165,122.60, 247,027.80 and 143,179.70 is: 214,200.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,122.60 : 247,027.80 = 143,179.70 : x
  2. Step 2: Convert to fraction form
    165,122.60/247,027.80 = 143,179.70/x
  3. Step 3: Cross multiply
    165,122.60x = 247,027.80 × 143,179.70
  4. Step 4: Simplify right side
    165,122.60x = 35,369,366,295.66
  5. Step 5: Solve for x
    x = 35,369,366,295.66/165,122.60
  6. Step 6: Final answer
    x = 214,200.64

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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.