Home / 381,827.20-526,906.96-212,072.28

Finding the Fourth Proportional to 381,827.20, 526,906.96 and 212,072.28

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Solution

The fourth proportional to 381,827.20, 526,906.96 and 212,072.28 is: 292,651.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,827.20 : 526,906.96 = 212,072.28 : x
  2. Step 2: Convert to fraction form
    381,827.20/526,906.96 = 212,072.28/x
  3. Step 3: Cross multiply
    381,827.20x = 526,906.96 × 212,072.28
  4. Step 4: Simplify right side
    381,827.20x = 111,742,360,355.07
  5. Step 5: Solve for x
    x = 111,742,360,355.07/381,827.20
  6. Step 6: Final answer
    x = 292,651.65

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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.