Home / 221,213.20-331,560.60-165,744.40

Finding the Fourth Proportional to 221,213.20, 331,560.60 and 165,744.40

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Solution

The fourth proportional to 221,213.20, 331,560.60 and 165,744.40 is: 248,422.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,213.20 : 331,560.60 = 165,744.40 : x
  2. Step 2: Convert to fraction form
    221,213.20/331,560.60 = 165,744.40/x
  3. Step 3: Cross multiply
    221,213.20x = 331,560.60 × 165,744.40
  4. Step 4: Simplify right side
    221,213.20x = 54,954,312,710.64
  5. Step 5: Solve for x
    x = 54,954,312,710.64/221,213.20
  6. Step 6: Final answer
    x = 248,422.39

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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.