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Finding the Fourth Proportional to 303,411.90, 455,227.20 and 126,046.20

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Solution

The fourth proportional to 303,411.90, 455,227.20 and 126,046.20 is: 189,114.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,411.90 : 455,227.20 = 126,046.20 : x
  2. Step 2: Convert to fraction form
    303,411.90/455,227.20 = 126,046.20/x
  3. Step 3: Cross multiply
    303,411.90x = 455,227.20 × 126,046.20
  4. Step 4: Simplify right side
    303,411.90x = 57,379,658,696.64
  5. Step 5: Solve for x
    x = 57,379,658,696.64/303,411.90
  6. Step 6: Final answer
    x = 189,114.73

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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.