Home / 285,867.88-394,569.36-194,142.37

Finding the Fourth Proportional to 285,867.88, 394,569.36 and 194,142.37

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Solution

The fourth proportional to 285,867.88, 394,569.36 and 194,142.37 is: 267,965.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,867.88 : 394,569.36 = 194,142.37 : x
  2. Step 2: Convert to fraction form
    285,867.88/394,569.36 = 194,142.37/x
  3. Step 3: Cross multiply
    285,867.88x = 394,569.36 × 194,142.37
  4. Step 4: Simplify right side
    285,867.88x = 76,602,630,679.78
  5. Step 5: Solve for x
    x = 76,602,630,679.78/285,867.88
  6. Step 6: Final answer
    x = 267,965.15

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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.