Home / 285,812.28-394,414.92-158,485.14

Finding the Fourth Proportional to 285,812.28, 394,414.92 and 158,485.14

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Solution

The fourth proportional to 285,812.28, 394,414.92 and 158,485.14 is: 218,706.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,812.28 : 394,414.92 = 158,485.14 : x
  2. Step 2: Convert to fraction form
    285,812.28/394,414.92 = 158,485.14/x
  3. Step 3: Cross multiply
    285,812.28x = 394,414.92 × 158,485.14
  4. Step 4: Simplify right side
    285,812.28x = 62,508,903,814.29
  5. Step 5: Solve for x
    x = 62,508,903,814.29/285,812.28
  6. Step 6: Final answer
    x = 218,706.15

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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.