Home / 285,914.16-394,608.78-158,630.76

Finding the Fourth Proportional to 285,914.16, 394,608.78 and 158,630.76

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Solution

The fourth proportional to 285,914.16, 394,608.78 and 158,630.76 is: 218,936.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,914.16 : 394,608.78 = 158,630.76 : x
  2. Step 2: Convert to fraction form
    285,914.16/394,608.78 = 158,630.76/x
  3. Step 3: Cross multiply
    285,914.16x = 394,608.78 × 158,630.76
  4. Step 4: Simplify right side
    285,914.16x = 62,597,090,674.07
  5. Step 5: Solve for x
    x = 62,597,090,674.07/285,914.16
  6. Step 6: Final answer
    x = 218,936.66

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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.