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Finding the Fourth Proportional to 253,234.44, 379,711.41 and 103,579.82

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Solution

The fourth proportional to 253,234.44, 379,711.41 and 103,579.82 is: 155,312.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,234.44 : 379,711.41 = 103,579.82 : x
  2. Step 2: Convert to fraction form
    253,234.44/379,711.41 = 103,579.82/x
  3. Step 3: Cross multiply
    253,234.44x = 379,711.41 × 103,579.82
  4. Step 4: Simplify right side
    253,234.44x = 39,330,437,601.19
  5. Step 5: Solve for x
    x = 39,330,437,601.19/253,234.44
  6. Step 6: Final answer
    x = 155,312.36

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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.