Home / 381,214.20-526,071.79-211,443.96

Finding the Fourth Proportional to 381,214.20, 526,071.79 and 211,443.96

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Solution

The fourth proportional to 381,214.20, 526,071.79 and 211,443.96 is: 291,790.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,214.20 : 526,071.79 = 211,443.96 : x
  2. Step 2: Convert to fraction form
    381,214.20/526,071.79 = 211,443.96/x
  3. Step 3: Cross multiply
    381,214.20x = 526,071.79 × 211,443.96
  4. Step 4: Simplify right side
    381,214.20x = 111,234,702,521.89
  5. Step 5: Solve for x
    x = 111,234,702,521.89/381,214.20
  6. Step 6: Final answer
    x = 291,790.55

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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.