Home / 221,520.22-332,297.84-109,139.13

Finding the Fourth Proportional to 221,520.22, 332,297.84 and 109,139.13

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Solution

The fourth proportional to 221,520.22, 332,297.84 and 109,139.13 is: 163,717.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,520.22 : 332,297.84 = 109,139.13 : x
  2. Step 2: Convert to fraction form
    221,520.22/332,297.84 = 109,139.13/x
  3. Step 3: Cross multiply
    221,520.22x = 332,297.84 × 109,139.13
  4. Step 4: Simplify right side
    221,520.22x = 36,266,697,431.33
  5. Step 5: Solve for x
    x = 36,266,697,431.33/221,520.22
  6. Step 6: Final answer
    x = 163,717.32

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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.