Home / 251,996.82-347,739.08-138,819.56

Finding the Fourth Proportional to 251,996.82, 347,739.08 and 138,819.56

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Solution

The fourth proportional to 251,996.82, 347,739.08 and 138,819.56 is: 191,561.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,996.82 : 347,739.08 = 138,819.56 : x
  2. Step 2: Convert to fraction form
    251,996.82/347,739.08 = 138,819.56/x
  3. Step 3: Cross multiply
    251,996.82x = 347,739.08 × 138,819.56
  4. Step 4: Simplify right side
    251,996.82x = 48,272,986,080.40
  5. Step 5: Solve for x
    x = 48,272,986,080.40/251,996.82
  6. Step 6: Final answer
    x = 191,561.89

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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.