Home / 276,144.27-381,081.30-153,638.44

Finding the Fourth Proportional to 276,144.27, 381,081.30 and 153,638.44

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Solution

The fourth proportional to 276,144.27, 381,081.30 and 153,638.44 is: 212,022.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,144.27 : 381,081.30 = 153,638.44 : x
  2. Step 2: Convert to fraction form
    276,144.27/381,081.30 = 153,638.44/x
  3. Step 3: Cross multiply
    276,144.27x = 381,081.30 × 153,638.44
  4. Step 4: Simplify right side
    276,144.27x = 58,548,736,445.17
  5. Step 5: Solve for x
    x = 58,548,736,445.17/276,144.27
  6. Step 6: Final answer
    x = 212,022.28

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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.