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Finding the Fourth Proportional to 251,514.72, 347,115.78 and 144,099

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Solution

The fourth proportional to 251,514.72, 347,115.78 and 144,099 is: 198,871.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,514.72 : 347,115.78 = 144,099 : x
  2. Step 2: Convert to fraction form
    251,514.72/347,115.78 = 144,099/x
  3. Step 3: Cross multiply
    251,514.72x = 347,115.78 × 144,099
  4. Step 4: Simplify right side
    251,514.72x = 50,019,036,782.22
  5. Step 5: Solve for x
    x = 50,019,036,782.22/251,514.72
  6. Step 6: Final answer
    x = 198,871.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.