Home / 381,895.38-527,032.35-212,129.55

Finding the Fourth Proportional to 381,895.38, 527,032.35 and 212,129.55

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Solution

The fourth proportional to 381,895.38, 527,032.35 and 212,129.55 is: 292,748.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,895.38 : 527,032.35 = 212,129.55 : x
  2. Step 2: Convert to fraction form
    381,895.38/527,032.35 = 212,129.55/x
  3. Step 3: Cross multiply
    381,895.38x = 527,032.35 × 212,129.55
  4. Step 4: Simplify right side
    381,895.38x = 111,799,135,240.94
  5. Step 5: Solve for x
    x = 111,799,135,240.94/381,895.38
  6. Step 6: Final answer
    x = 292,748.07

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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.