Home / 276,404.85-381,434.09-155,546.10

Finding the Fourth Proportional to 276,404.85, 381,434.09 and 155,546.10

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Solution

The fourth proportional to 276,404.85, 381,434.09 and 155,546.10 is: 214,651.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,404.85 : 381,434.09 = 155,546.10 : x
  2. Step 2: Convert to fraction form
    276,404.85/381,434.09 = 155,546.10/x
  3. Step 3: Cross multiply
    276,404.85x = 381,434.09 × 155,546.10
  4. Step 4: Simplify right side
    276,404.85x = 59,330,584,328.82
  5. Step 5: Solve for x
    x = 59,330,584,328.82/276,404.85
  6. Step 6: Final answer
    x = 214,651.02

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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.