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Finding the Fourth Proportional to 253,230.29, 379,845.41 and 103,470.43

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Solution

The fourth proportional to 253,230.29, 379,845.41 and 103,470.43 is: 155,205.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,230.29 : 379,845.41 = 103,470.43 : x
  2. Step 2: Convert to fraction form
    253,230.29/379,845.41 = 103,470.43/x
  3. Step 3: Cross multiply
    253,230.29x = 379,845.41 × 103,470.43
  4. Step 4: Simplify right side
    253,230.29x = 39,302,766,007.00
  5. Step 5: Solve for x
    x = 39,302,766,007.00/253,230.29
  6. Step 6: Final answer
    x = 155,205.63

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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.