Home / 276,389.62-381,413.21-155,530.83

Finding the Fourth Proportional to 276,389.62, 381,413.21 and 155,530.83

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Solution

The fourth proportional to 276,389.62, 381,413.21 and 155,530.83 is: 214,630.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,389.62 : 381,413.21 = 155,530.83 : x
  2. Step 2: Convert to fraction form
    276,389.62/381,413.21 = 155,530.83/x
  3. Step 3: Cross multiply
    276,389.62x = 381,413.21 × 155,530.83
  4. Step 4: Simplify right side
    276,389.62x = 59,321,513,776.91
  5. Step 5: Solve for x
    x = 59,321,513,776.91/276,389.62
  6. Step 6: Final answer
    x = 214,630.04

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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.