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Finding the Fourth Proportional to 284,168.33, 426,323.11 and 84,488.39

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Solution

The fourth proportional to 284,168.33, 426,323.11 and 84,488.39 is: 126,753.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,168.33 : 426,323.11 = 84,488.39 : x
  2. Step 2: Convert to fraction form
    284,168.33/426,323.11 = 84,488.39/x
  3. Step 3: Cross multiply
    284,168.33x = 426,323.11 × 84,488.39
  4. Step 4: Simplify right side
    284,168.33x = 36,019,353,183.69
  5. Step 5: Solve for x
    x = 36,019,353,183.69/284,168.33
  6. Step 6: Final answer
    x = 126,753.58

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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.