Home / 285,519.36-394,032.66-163,047.90

Finding the Fourth Proportional to 285,519.36, 394,032.66 and 163,047.90

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Solution

The fourth proportional to 285,519.36, 394,032.66 and 163,047.90 is: 225,015.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,519.36 : 394,032.66 = 163,047.90 : x
  2. Step 2: Convert to fraction form
    285,519.36/394,032.66 = 163,047.90/x
  3. Step 3: Cross multiply
    285,519.36x = 394,032.66 × 163,047.90
  4. Step 4: Simplify right side
    285,519.36x = 64,246,197,744.41
  5. Step 5: Solve for x
    x = 64,246,197,744.41/285,519.36
  6. Step 6: Final answer
    x = 225,015.21

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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.