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Finding the Fourth Proportional to 221,351.40, 331,508.70 and 168,474.60

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Solution

The fourth proportional to 221,351.40, 331,508.70 and 168,474.60 is: 252,317.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,351.40 : 331,508.70 = 168,474.60 : x
  2. Step 2: Convert to fraction form
    221,351.40/331,508.70 = 168,474.60/x
  3. Step 3: Cross multiply
    221,351.40x = 331,508.70 × 168,474.60
  4. Step 4: Simplify right side
    221,351.40x = 55,850,795,629.02
  5. Step 5: Solve for x
    x = 55,850,795,629.02/221,351.40
  6. Step 6: Final answer
    x = 252,317.34

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1.5x scale

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.