Home / 221,040.10-331,560.15-165,744.10

Finding the Fourth Proportional to 221,040.10, 331,560.15 and 165,744.10

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Solution

The fourth proportional to 221,040.10, 331,560.15 and 165,744.10 is: 248,616.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,040.10 : 331,560.15 = 165,744.10 : x
  2. Step 2: Convert to fraction form
    221,040.10/331,560.15 = 165,744.10/x
  3. Step 3: Cross multiply
    221,040.10x = 331,560.15 × 165,744.10
  4. Step 4: Simplify right side
    221,040.10x = 54,954,138,657.62
  5. Step 5: Solve for x
    x = 54,954,138,657.62/221,040.10
  6. Step 6: Final answer
    x = 248,616.15

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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.