Home / 285,800.74-394,424.85-158,488.18

Finding the Fourth Proportional to 285,800.74, 394,424.85 and 158,488.18

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Solution

The fourth proportional to 285,800.74, 394,424.85 and 158,488.18 is: 218,724.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,800.74 : 394,424.85 = 158,488.18 : x
  2. Step 2: Convert to fraction form
    285,800.74/394,424.85 = 158,488.18/x
  3. Step 3: Cross multiply
    285,800.74x = 394,424.85 × 158,488.18
  4. Step 4: Simplify right side
    285,800.74x = 62,511,676,623.27
  5. Step 5: Solve for x
    x = 62,511,676,623.27/285,800.74
  6. Step 6: Final answer
    x = 218,724.68

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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.