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Finding the Fourth Proportional to 303,405.17, 455,310.92 and 125,912.35

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Solution

The fourth proportional to 303,405.17, 455,310.92 and 125,912.35 is: 188,952.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,405.17 : 455,310.92 = 125,912.35 : x
  2. Step 2: Convert to fraction form
    303,405.17/455,310.92 = 125,912.35/x
  3. Step 3: Cross multiply
    303,405.17x = 455,310.92 × 125,912.35
  4. Step 4: Simplify right side
    303,405.17x = 57,329,265,641.31
  5. Step 5: Solve for x
    x = 57,329,265,641.31/303,405.17
  6. Step 6: Final answer
    x = 188,952.83

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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.