Home / 253,044.08-379,269.72-103,190.80

Finding the Fourth Proportional to 253,044.08, 379,269.72 and 103,190.80

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Solution

The fourth proportional to 253,044.08, 379,269.72 and 103,190.80 is: 154,665.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,044.08 : 379,269.72 = 103,190.80 : x
  2. Step 2: Convert to fraction form
    253,044.08/379,269.72 = 103,190.80/x
  3. Step 3: Cross multiply
    253,044.08x = 379,269.72 × 103,190.80
  4. Step 4: Simplify right side
    253,044.08x = 39,137,145,822.58
  5. Step 5: Solve for x
    x = 39,137,145,822.58/253,044.08
  6. Step 6: Final answer
    x = 154,665.33

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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.