Home / 381,422.27-526,387.34-211,656.40

Finding the Fourth Proportional to 381,422.27, 526,387.34 and 211,656.40

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Solution

The fourth proportional to 381,422.27, 526,387.34 and 211,656.40 is: 292,099.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,422.27 : 526,387.34 = 211,656.40 : x
  2. Step 2: Convert to fraction form
    381,422.27/526,387.34 = 211,656.40/x
  3. Step 3: Cross multiply
    381,422.27x = 526,387.34 × 211,656.40
  4. Step 4: Simplify right side
    381,422.27x = 111,413,248,603.15
  5. Step 5: Solve for x
    x = 111,413,248,603.15/381,422.27
  6. Step 6: Final answer
    x = 292,099.48

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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.