Home / 285,865.65-394,518.83-158,582.25

Finding the Fourth Proportional to 285,865.65, 394,518.83 and 158,582.25

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Solution

The fourth proportional to 285,865.65, 394,518.83 and 158,582.25 is: 218,856.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,865.65 : 394,518.83 = 158,582.25 : x
  2. Step 2: Convert to fraction form
    285,865.65/394,518.83 = 158,582.25/x
  3. Step 3: Cross multiply
    285,865.65x = 394,518.83 × 158,582.25
  4. Step 4: Simplify right side
    285,865.65x = 62,563,682,935.86
  5. Step 5: Solve for x
    x = 62,563,682,935.86/285,865.65
  6. Step 6: Final answer
    x = 218,856.95

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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.