Home / 285,962.43-394,628.31-158,638.14

Finding the Fourth Proportional to 285,962.43, 394,628.31 and 158,638.14

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Solution

The fourth proportional to 285,962.43, 394,628.31 and 158,638.14 is: 218,920.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,962.43 : 394,628.31 = 158,638.14 : x
  2. Step 2: Convert to fraction form
    285,962.43/394,628.31 = 158,638.14/x
  3. Step 3: Cross multiply
    285,962.43x = 394,628.31 × 158,638.14
  4. Step 4: Simplify right side
    285,962.43x = 62,603,101,089.74
  5. Step 5: Solve for x
    x = 62,603,101,089.74/285,962.43
  6. Step 6: Final answer
    x = 218,920.72

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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.