Home / 276,626.90-381,704.49-155,744.12

Finding the Fourth Proportional to 276,626.90, 381,704.49 and 155,744.12

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Solution

The fourth proportional to 276,626.90, 381,704.49 and 155,744.12 is: 214,904.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,626.90 : 381,704.49 = 155,744.12 : x
  2. Step 2: Convert to fraction form
    276,626.90/381,704.49 = 155,744.12/x
  3. Step 3: Cross multiply
    276,626.90x = 381,704.49 × 155,744.12
  4. Step 4: Simplify right side
    276,626.90x = 59,448,227,986.58
  5. Step 5: Solve for x
    x = 59,448,227,986.58/276,626.90
  6. Step 6: Final answer
    x = 214,904.01

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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.