Home / 221,126.60-331,375.80-170,333.48

Finding the Fourth Proportional to 221,126.60, 331,375.80 and 170,333.48

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Solution

The fourth proportional to 221,126.60, 331,375.80 and 170,333.48 is: 255,258.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,126.60 : 331,375.80 = 170,333.48 : x
  2. Step 2: Convert to fraction form
    221,126.60/331,375.80 = 170,333.48/x
  3. Step 3: Cross multiply
    221,126.60x = 331,375.80 × 170,333.48
  4. Step 4: Simplify right side
    221,126.60x = 56,444,393,201.78
  5. Step 5: Solve for x
    x = 56,444,393,201.78/221,126.60
  6. Step 6: Final answer
    x = 255,258.27

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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.