Home / 285,851.22-394,464.75-158,538.66

Finding the Fourth Proportional to 285,851.22, 394,464.75 and 158,538.66

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Solution

The fourth proportional to 285,851.22, 394,464.75 and 158,538.66 is: 218,777.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,851.22 : 394,464.75 = 158,538.66 : x
  2. Step 2: Convert to fraction form
    285,851.22/394,464.75 = 158,538.66/x
  3. Step 3: Cross multiply
    285,851.22x = 394,464.75 × 158,538.66
  4. Step 4: Simplify right side
    285,851.22x = 62,537,912,882.24
  5. Step 5: Solve for x
    x = 62,537,912,882.24/285,851.22
  6. Step 6: Final answer
    x = 218,777.84

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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.