Home / 445,166.28-667,303.92-220,690.98

Finding the Fourth Proportional to 445,166.28, 667,303.92 and 220,690.98

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Solution

The fourth proportional to 445,166.28, 667,303.92 and 220,690.98 is: 330,815.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,166.28 : 667,303.92 = 220,690.98 : x
  2. Step 2: Convert to fraction form
    445,166.28/667,303.92 = 220,690.98/x
  3. Step 3: Cross multiply
    445,166.28x = 667,303.92 × 220,690.98
  4. Step 4: Simplify right side
    445,166.28x = 147,267,956,062.64
  5. Step 5: Solve for x
    x = 147,267,956,062.64/445,166.28
  6. Step 6: Final answer
    x = 330,815.61

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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.