Home / 381,215.82-526,074.03-211,445.58

Finding the Fourth Proportional to 381,215.82, 526,074.03 and 211,445.58

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Solution

The fourth proportional to 381,215.82, 526,074.03 and 211,445.58 is: 291,792.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,215.82 : 526,074.03 = 211,445.58 : x
  2. Step 2: Convert to fraction form
    381,215.82/526,074.03 = 211,445.58/x
  3. Step 3: Cross multiply
    381,215.82x = 526,074.03 × 211,445.58
  4. Step 4: Simplify right side
    381,215.82x = 111,236,028,396.29
  5. Step 5: Solve for x
    x = 111,236,028,396.29/381,215.82
  6. Step 6: Final answer
    x = 291,792.79

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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.