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Finding the Fourth Proportional to 274,481.60, 411,722.40 and 162,215.60

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Solution

The fourth proportional to 274,481.60, 411,722.40 and 162,215.60 is: 243,323.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,481.60 : 411,722.40 = 162,215.60 : x
  2. Step 2: Convert to fraction form
    274,481.60/411,722.40 = 162,215.60/x
  3. Step 3: Cross multiply
    274,481.60x = 411,722.40 × 162,215.60
  4. Step 4: Simplify right side
    274,481.60x = 66,787,796,149.44
  5. Step 5: Solve for x
    x = 66,787,796,149.44/274,481.60
  6. Step 6: Final answer
    x = 243,323.40

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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.