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Finding the Fourth Proportional to 253,045.26, 379,554.93 and 75,553.74

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Solution

The fourth proportional to 253,045.26, 379,554.93 and 75,553.74 is: 113,326.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,045.26 : 379,554.93 = 75,553.74 : x
  2. Step 2: Convert to fraction form
    253,045.26/379,554.93 = 75,553.74/x
  3. Step 3: Cross multiply
    253,045.26x = 379,554.93 × 75,553.74
  4. Step 4: Simplify right side
    253,045.26x = 28,676,794,496.94
  5. Step 5: Solve for x
    x = 28,676,794,496.94/253,045.26
  6. Step 6: Final answer
    x = 113,326.74

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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.