Home / 285,942.20-394,623.66-158,630.84

Finding the Fourth Proportional to 285,942.20, 394,623.66 and 158,630.84

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Solution

The fourth proportional to 285,942.20, 394,623.66 and 158,630.84 is: 218,923.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,942.20 : 394,623.66 = 158,630.84 : x
  2. Step 2: Convert to fraction form
    285,942.20/394,623.66 = 158,630.84/x
  3. Step 3: Cross multiply
    285,942.20x = 394,623.66 × 158,630.84
  4. Step 4: Simplify right side
    285,942.20x = 62,599,482,669.67
  5. Step 5: Solve for x
    x = 62,599,482,669.67/285,942.20
  6. Step 6: Final answer
    x = 218,923.55

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1.5x scale

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.