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Finding the Fourth Proportional to 445,249.16, 667,707.66 and 178,919.54

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Solution

The fourth proportional to 445,249.16, 667,707.66 and 178,919.54 is: 268,312.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,249.16 : 667,707.66 = 178,919.54 : x
  2. Step 2: Convert to fraction form
    445,249.16/667,707.66 = 178,919.54/x
  3. Step 3: Cross multiply
    445,249.16x = 667,707.66 × 178,919.54
  4. Step 4: Simplify right side
    445,249.16x = 119,465,947,381.68
  5. Step 5: Solve for x
    x = 119,465,947,381.68/445,249.16
  6. Step 6: Final answer
    x = 268,312.57

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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.