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Finding the Fourth Proportional to 253,331.48, 379,857 and 103,676.96

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Solution

The fourth proportional to 253,331.48, 379,857 and 103,676.96 is: 155,458.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,331.48 : 379,857 = 103,676.96 : x
  2. Step 2: Convert to fraction form
    253,331.48/379,857 = 103,676.96/x
  3. Step 3: Cross multiply
    253,331.48x = 379,857 × 103,676.96
  4. Step 4: Simplify right side
    253,331.48x = 39,382,418,994.72
  5. Step 5: Solve for x
    x = 39,382,418,994.72/253,331.48
  6. Step 6: Final answer
    x = 155,458.05

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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.