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Finding the Fourth Proportional to 303,977.70, 455,275.35 and 192,003.30

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Solution

The fourth proportional to 303,977.70, 455,275.35 and 192,003.30 is: 287,568.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,977.70 : 455,275.35 = 192,003.30 : x
  2. Step 2: Convert to fraction form
    303,977.70/455,275.35 = 192,003.30/x
  3. Step 3: Cross multiply
    303,977.70x = 455,275.35 × 192,003.30
  4. Step 4: Simplify right side
    303,977.70x = 87,414,369,608.66
  5. Step 5: Solve for x
    x = 87,414,369,608.66/303,977.70
  6. Step 6: Final answer
    x = 287,568.36

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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.