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Finding the Fourth Proportional to 279,571.08, 385,794.72 and 152,245.92

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Solution

The fourth proportional to 279,571.08, 385,794.72 and 152,245.92 is: 210,092.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,571.08 : 385,794.72 = 152,245.92 : x
  2. Step 2: Convert to fraction form
    279,571.08/385,794.72 = 152,245.92/x
  3. Step 3: Cross multiply
    279,571.08x = 385,794.72 × 152,245.92
  4. Step 4: Simplify right side
    279,571.08x = 58,735,672,077.54
  5. Step 5: Solve for x
    x = 58,735,672,077.54/279,571.08
  6. Step 6: Final answer
    x = 210,092.09

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.