Home / 288,918.22-398,728.02-161,634.82

Finding the Fourth Proportional to 288,918.22, 398,728.02 and 161,634.82

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Solution

The fourth proportional to 288,918.22, 398,728.02 and 161,634.82 is: 223,067.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,918.22 : 398,728.02 = 161,634.82 : x
  2. Step 2: Convert to fraction form
    288,918.22/398,728.02 = 161,634.82/x
  3. Step 3: Cross multiply
    288,918.22x = 398,728.02 × 161,634.82
  4. Step 4: Simplify right side
    288,918.22x = 64,448,331,741.66
  5. Step 5: Solve for x
    x = 64,448,331,741.66/288,918.22
  6. Step 6: Final answer
    x = 223,067.73

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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.