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Finding the Fourth Proportional to 192,755.50, 289,152.84 and 66,379.25

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Solution

The fourth proportional to 192,755.50, 289,152.84 and 66,379.25 is: 99,575.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,755.50 : 289,152.84 = 66,379.25 : x
  2. Step 2: Convert to fraction form
    192,755.50/289,152.84 = 66,379.25/x
  3. Step 3: Cross multiply
    192,755.50x = 289,152.84 × 66,379.25
  4. Step 4: Simplify right side
    192,755.50x = 19,193,747,626.51
  5. Step 5: Solve for x
    x = 19,193,747,626.51/192,755.50
  6. Step 6: Final answer
    x = 99,575.62

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1.5x scale

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.