Home / 354,724.20-532,086.30-221,754.60

Finding the Fourth Proportional to 354,724.20, 532,086.30 and 221,754.60

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Solution

The fourth proportional to 354,724.20, 532,086.30 and 221,754.60 is: 332,631.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,724.20 : 532,086.30 = 221,754.60 : x
  2. Step 2: Convert to fraction form
    354,724.20/532,086.30 = 221,754.60/x
  3. Step 3: Cross multiply
    354,724.20x = 532,086.30 × 221,754.60
  4. Step 4: Simplify right side
    354,724.20x = 117,992,584,621.98
  5. Step 5: Solve for x
    x = 117,992,584,621.98/354,724.20
  6. Step 6: Final answer
    x = 332,631.90

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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.