Home / 285,580.32-394,103.19-158,258.04

Finding the Fourth Proportional to 285,580.32, 394,103.19 and 158,258.04

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Solution

The fourth proportional to 285,580.32, 394,103.19 and 158,258.04 is: 218,397.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,580.32 : 394,103.19 = 158,258.04 : x
  2. Step 2: Convert to fraction form
    285,580.32/394,103.19 = 158,258.04/x
  3. Step 3: Cross multiply
    285,580.32x = 394,103.19 × 158,258.04
  4. Step 4: Simplify right side
    285,580.32x = 62,369,998,407.15
  5. Step 5: Solve for x
    x = 62,369,998,407.15/285,580.32
  6. Step 6: Final answer
    x = 218,397.40

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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.