Home / 381,736.78-526,976.31-220,560.69

Finding the Fourth Proportional to 381,736.78, 526,976.31 and 220,560.69

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Solution

The fourth proportional to 381,736.78, 526,976.31 and 220,560.69 is: 304,477.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,736.78 : 526,976.31 = 220,560.69 : x
  2. Step 2: Convert to fraction form
    381,736.78/526,976.31 = 220,560.69/x
  3. Step 3: Cross multiply
    381,736.78x = 526,976.31 × 220,560.69
  4. Step 4: Simplify right side
    381,736.78x = 116,230,258,386.28
  5. Step 5: Solve for x
    x = 116,230,258,386.28/381,736.78
  6. Step 6: Final answer
    x = 304,477.49

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1.5x scale

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.