Home / 218,558.18-327,596.67-85,413.62

Finding the Fourth Proportional to 218,558.18, 327,596.67 and 85,413.62

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Solution

The fourth proportional to 218,558.18, 327,596.67 and 85,413.62 is: 128,026.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,558.18 : 327,596.67 = 85,413.62 : x
  2. Step 2: Convert to fraction form
    218,558.18/327,596.67 = 85,413.62/x
  3. Step 3: Cross multiply
    218,558.18x = 327,596.67 × 85,413.62
  4. Step 4: Simplify right side
    218,558.18x = 27,981,217,484.65
  5. Step 5: Solve for x
    x = 27,981,217,484.65/218,558.18
  6. Step 6: Final answer
    x = 128,026.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.