Home / 381,828.20-526,908.34-212,073.28

Finding the Fourth Proportional to 381,828.20, 526,908.34 and 212,073.28

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Solution

The fourth proportional to 381,828.20, 526,908.34 and 212,073.28 is: 292,653.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,828.20 : 526,908.34 = 212,073.28 : x
  2. Step 2: Convert to fraction form
    381,828.20/526,908.34 = 212,073.28/x
  3. Step 3: Cross multiply
    381,828.20x = 526,908.34 × 212,073.28
  4. Step 4: Simplify right side
    381,828.20x = 111,743,179,923.16
  5. Step 5: Solve for x
    x = 111,743,179,923.16/381,828.20
  6. Step 6: Final answer
    x = 292,653.03

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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.