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Finding the Fourth Proportional to 445,149.16, 667,717.75 and 108,188.84

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Solution

The fourth proportional to 445,149.16, 667,717.75 and 108,188.84 is: 162,281.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,149.16 : 667,717.75 = 108,188.84 : x
  2. Step 2: Convert to fraction form
    445,149.16/667,717.75 = 108,188.84/x
  3. Step 3: Cross multiply
    445,149.16x = 667,717.75 × 108,188.84
  4. Step 4: Simplify right side
    445,149.16x = 72,239,609,050.77
  5. Step 5: Solve for x
    x = 72,239,609,050.77/445,149.16
  6. Step 6: Final answer
    x = 162,281.81

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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.