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Finding the Fourth Proportional to 252,846.70, 379,143.08 and 84,307.37

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Solution

The fourth proportional to 252,846.70, 379,143.08 and 84,307.37 is: 126,418.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,846.70 : 379,143.08 = 84,307.37 : x
  2. Step 2: Convert to fraction form
    252,846.70/379,143.08 = 84,307.37/x
  3. Step 3: Cross multiply
    252,846.70x = 379,143.08 × 84,307.37
  4. Step 4: Simplify right side
    252,846.70x = 31,964,553,927.40
  5. Step 5: Solve for x
    x = 31,964,553,927.40/252,846.70
  6. Step 6: Final answer
    x = 126,418.71

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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.