Home / 276,427.89-381,466.26-153,919.44

Finding the Fourth Proportional to 276,427.89, 381,466.26 and 153,919.44

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Solution

The fourth proportional to 276,427.89, 381,466.26 and 153,919.44 is: 212,406.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,427.89 : 381,466.26 = 153,919.44 : x
  2. Step 2: Convert to fraction form
    276,427.89/381,466.26 = 153,919.44/x
  3. Step 3: Cross multiply
    276,427.89x = 381,466.26 × 153,919.44
  4. Step 4: Simplify right side
    276,427.89x = 58,715,073,118.09
  5. Step 5: Solve for x
    x = 58,715,073,118.09/276,427.89
  6. Step 6: Final answer
    x = 212,406.47

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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.