Home / 381,181.26-526,016.70-211,431.18

Finding the Fourth Proportional to 381,181.26, 526,016.70 and 211,431.18

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Solution

The fourth proportional to 381,181.26, 526,016.70 and 211,431.18 is: 291,767.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,181.26 : 526,016.70 = 211,431.18 : x
  2. Step 2: Convert to fraction form
    381,181.26/526,016.70 = 211,431.18/x
  3. Step 3: Cross multiply
    381,181.26x = 526,016.70 × 211,431.18
  4. Step 4: Simplify right side
    381,181.26x = 111,216,331,580.71
  5. Step 5: Solve for x
    x = 111,216,331,580.71/381,181.26
  6. Step 6: Final answer
    x = 291,767.57

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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.