Home / 381,811.20-526,900.69-212,045.33

Finding the Fourth Proportional to 381,811.20, 526,900.69 and 212,045.33

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Solution

The fourth proportional to 381,811.20, 526,900.69 and 212,045.33 is: 292,623.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,811.20 : 526,900.69 = 212,045.33 : x
  2. Step 2: Convert to fraction form
    381,811.20/526,900.69 = 212,045.33/x
  3. Step 3: Cross multiply
    381,811.20x = 526,900.69 × 212,045.33
  4. Step 4: Simplify right side
    381,811.20x = 111,726,826,993.55
  5. Step 5: Solve for x
    x = 111,726,826,993.55/381,811.20
  6. Step 6: Final answer
    x = 292,623.23

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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.