Home / 251,917.16-347,629.73-138,739.91

Finding the Fourth Proportional to 251,917.16, 347,629.73 and 138,739.91

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Solution

The fourth proportional to 251,917.16, 347,629.73 and 138,739.91 is: 191,452.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,917.16 : 347,629.73 = 138,739.91 : x
  2. Step 2: Convert to fraction form
    251,917.16/347,629.73 = 138,739.91/x
  3. Step 3: Cross multiply
    251,917.16x = 347,629.73 × 138,739.91
  4. Step 4: Simplify right side
    251,917.16x = 48,230,115,021.68
  5. Step 5: Solve for x
    x = 48,230,115,021.68/251,917.16
  6. Step 6: Final answer
    x = 191,452.29

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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.