Home / 285,811.85-394,436.10-158,484.71

Finding the Fourth Proportional to 285,811.85, 394,436.10 and 158,484.71

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Solution

The fourth proportional to 285,811.85, 394,436.10 and 158,484.71 is: 218,717.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,811.85 : 394,436.10 = 158,484.71 : x
  2. Step 2: Convert to fraction form
    285,811.85/394,436.10 = 158,484.71/x
  3. Step 3: Cross multiply
    285,811.85x = 394,436.10 × 158,484.71
  4. Step 4: Simplify right side
    285,811.85x = 62,512,088,949.85
  5. Step 5: Solve for x
    x = 62,512,088,949.85/285,811.85
  6. Step 6: Final answer
    x = 218,717.63

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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.