Home / 285,607.48-394,148.82-172,408.36

Finding the Fourth Proportional to 285,607.48, 394,148.82 and 172,408.36

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Solution

The fourth proportional to 285,607.48, 394,148.82 and 172,408.36 is: 237,929.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,607.48 : 394,148.82 = 172,408.36 : x
  2. Step 2: Convert to fraction form
    285,607.48/394,148.82 = 172,408.36/x
  3. Step 3: Cross multiply
    285,607.48x = 394,148.82 × 172,408.36
  4. Step 4: Simplify right side
    285,607.48x = 67,954,551,652.14
  5. Step 5: Solve for x
    x = 67,954,551,652.14/285,607.48
  6. Step 6: Final answer
    x = 237,929.87

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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.