Home / 285,941.20-394,622.28-158,629.84

Finding the Fourth Proportional to 285,941.20, 394,622.28 and 158,629.84

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Solution

The fourth proportional to 285,941.20, 394,622.28 and 158,629.84 is: 218,922.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,941.20 : 394,622.28 = 158,629.84 : x
  2. Step 2: Convert to fraction form
    285,941.20/394,622.28 = 158,629.84/x
  3. Step 3: Cross multiply
    285,941.20x = 394,622.28 × 158,629.84
  4. Step 4: Simplify right side
    285,941.20x = 62,598,869,136.84
  5. Step 5: Solve for x
    x = 62,598,869,136.84/285,941.20
  6. Step 6: Final answer
    x = 218,922.17

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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.