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Finding the Fourth Proportional to 445,226.88, 667,871.24 and 178,987.53

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Solution

The fourth proportional to 445,226.88, 667,871.24 and 178,987.53 is: 268,493.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,226.88 : 667,871.24 = 178,987.53 : x
  2. Step 2: Convert to fraction form
    445,226.88/667,871.24 = 178,987.53/x
  3. Step 3: Cross multiply
    445,226.88x = 667,871.24 × 178,987.53
  4. Step 4: Simplify right side
    445,226.88x = 119,540,622,710.70
  5. Step 5: Solve for x
    x = 119,540,622,710.70/445,226.88
  6. Step 6: Final answer
    x = 268,493.72

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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.