Home / 381,659.12-526,669.03-211,882.31

Finding the Fourth Proportional to 381,659.12, 526,669.03 and 211,882.31

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Solution

The fourth proportional to 381,659.12, 526,669.03 and 211,882.31 is: 292,386.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,659.12 : 526,669.03 = 211,882.31 : x
  2. Step 2: Convert to fraction form
    381,659.12/526,669.03 = 211,882.31/x
  3. Step 3: Cross multiply
    381,659.12x = 526,669.03 × 211,882.31
  4. Step 4: Simplify right side
    381,659.12x = 111,591,851,468.83
  5. Step 5: Solve for x
    x = 111,591,851,468.83/381,659.12
  6. Step 6: Final answer
    x = 292,386.18

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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.