Home / 445,226.10-668,276.55-220,839.90

Finding the Fourth Proportional to 445,226.10, 668,276.55 and 220,839.90

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Solution

The fourth proportional to 445,226.10, 668,276.55 and 220,839.90 is: 331,476.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,226.10 : 668,276.55 = 220,839.90 : x
  2. Step 2: Convert to fraction form
    445,226.10/668,276.55 = 220,839.90/x
  3. Step 3: Cross multiply
    445,226.10x = 668,276.55 × 220,839.90
  4. Step 4: Simplify right side
    445,226.10x = 147,582,126,474.35
  5. Step 5: Solve for x
    x = 147,582,126,474.35/445,226.10
  6. Step 6: Final answer
    x = 331,476.81

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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.