Home / 221,022.60-331,498.70-73,278.60

Finding the Fourth Proportional to 221,022.60, 331,498.70 and 73,278.60

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Solution

The fourth proportional to 221,022.60, 331,498.70 and 73,278.60 is: 109,906.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,022.60 : 331,498.70 = 73,278.60 : x
  2. Step 2: Convert to fraction form
    221,022.60/331,498.70 = 73,278.60/x
  3. Step 3: Cross multiply
    221,022.60x = 331,498.70 × 73,278.60
  4. Step 4: Simplify right side
    221,022.60x = 24,291,760,637.82
  5. Step 5: Solve for x
    x = 24,291,760,637.82/221,022.60
  6. Step 6: Final answer
    x = 109,906.23

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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.