Home / 381,719.25-526,837.39-220,667.67

Finding the Fourth Proportional to 381,719.25, 526,837.39 and 220,667.67

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Solution

The fourth proportional to 381,719.25, 526,837.39 and 220,667.67 is: 304,558.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,719.25 : 526,837.39 = 220,667.67 : x
  2. Step 2: Convert to fraction form
    381,719.25/526,837.39 = 220,667.67/x
  3. Step 3: Cross multiply
    381,719.25x = 526,837.39 × 220,667.67
  4. Step 4: Simplify right side
    381,719.25x = 116,255,978,768.51
  5. Step 5: Solve for x
    x = 116,255,978,768.51/381,719.25
  6. Step 6: Final answer
    x = 304,558.86

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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.