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Finding the Fourth Proportional to 253,230.01, 379,704.78 and 103,575.39

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Solution

The fourth proportional to 253,230.01, 379,704.78 and 103,575.39 is: 155,305.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,230.01 : 379,704.78 = 103,575.39 : x
  2. Step 2: Convert to fraction form
    253,230.01/379,704.78 = 103,575.39/x
  3. Step 3: Cross multiply
    253,230.01x = 379,704.78 × 103,575.39
  4. Step 4: Simplify right side
    253,230.01x = 39,328,070,673.36
  5. Step 5: Solve for x
    x = 39,328,070,673.36/253,230.01
  6. Step 6: Final answer
    x = 155,305.73

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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.