Home / 445,226.13-667,870.11-178,986.78

Finding the Fourth Proportional to 445,226.13, 667,870.11 and 178,986.78

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Solution

The fourth proportional to 445,226.13, 667,870.11 and 178,986.78 is: 268,492.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,226.13 : 667,870.11 = 178,986.78 : x
  2. Step 2: Convert to fraction form
    445,226.13/667,870.11 = 178,986.78/x
  3. Step 3: Cross multiply
    445,226.13x = 667,870.11 × 178,986.78
  4. Step 4: Simplify right side
    445,226.13x = 119,539,920,447.15
  5. Step 5: Solve for x
    x = 119,539,920,447.15/445,226.13
  6. Step 6: Final answer
    x = 268,492.60

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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.