Home / 276,381.12-381,396.48-155,527.68

Finding the Fourth Proportional to 276,381.12, 381,396.48 and 155,527.68

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Solution

The fourth proportional to 276,381.12, 381,396.48 and 155,527.68 is: 214,622.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,381.12 : 381,396.48 = 155,527.68 : x
  2. Step 2: Convert to fraction form
    276,381.12/381,396.48 = 155,527.68/x
  3. Step 3: Cross multiply
    276,381.12x = 381,396.48 × 155,527.68
  4. Step 4: Simplify right side
    276,381.12x = 59,317,709,694.57
  5. Step 5: Solve for x
    x = 59,317,709,694.57/276,381.12
  6. Step 6: Final answer
    x = 214,622.87

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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.