Home / 381,867.03-526,976.71-212,101.16

Finding the Fourth Proportional to 381,867.03, 526,976.71 and 212,101.16

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Solution

The fourth proportional to 381,867.03, 526,976.71 and 212,101.16 is: 292,699.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,867.03 : 526,976.71 = 212,101.16 : x
  2. Step 2: Convert to fraction form
    381,867.03/526,976.71 = 212,101.16/x
  3. Step 3: Cross multiply
    381,867.03x = 526,976.71 × 212,101.16
  4. Step 4: Simplify right side
    381,867.03x = 111,772,368,318.85
  5. Step 5: Solve for x
    x = 111,772,368,318.85/381,867.03
  6. Step 6: Final answer
    x = 292,699.71

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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.