Home / 285,575.72-394,104.66-172,376.36

Finding the Fourth Proportional to 285,575.72, 394,104.66 and 172,376.36

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Solution

The fourth proportional to 285,575.72, 394,104.66 and 172,376.36 is: 237,885.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,575.72 : 394,104.66 = 172,376.36 : x
  2. Step 2: Convert to fraction form
    285,575.72/394,104.66 = 172,376.36/x
  3. Step 3: Cross multiply
    285,575.72x = 394,104.66 × 172,376.36
  4. Step 4: Simplify right side
    285,575.72x = 67,934,326,749.84
  5. Step 5: Solve for x
    x = 67,934,326,749.84/285,575.72
  6. Step 6: Final answer
    x = 237,885.51

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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.