Home / 221,049.40-331,574.10-73,286.20

Finding the Fourth Proportional to 221,049.40, 331,574.10 and 73,286.20

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Solution

The fourth proportional to 221,049.40, 331,574.10 and 73,286.20 is: 109,929.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,049.40 : 331,574.10 = 73,286.20 : x
  2. Step 2: Convert to fraction form
    221,049.40/331,574.10 = 73,286.20/x
  3. Step 3: Cross multiply
    221,049.40x = 331,574.10 × 73,286.20
  4. Step 4: Simplify right side
    221,049.40x = 24,299,805,807.42
  5. Step 5: Solve for x
    x = 24,299,805,807.42/221,049.40
  6. Step 6: Final answer
    x = 109,929.30

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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.