Home / 381,824.85-526,887.46-220,690.33

Finding the Fourth Proportional to 381,824.85, 526,887.46 and 220,690.33

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Solution

The fourth proportional to 381,824.85, 526,887.46 and 220,690.33 is: 304,534.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,824.85 : 526,887.46 = 220,690.33 : x
  2. Step 2: Convert to fraction form
    381,824.85/526,887.46 = 220,690.33/x
  3. Step 3: Cross multiply
    381,824.85x = 526,887.46 × 220,690.33
  4. Step 4: Simplify right side
    381,824.85x = 116,278,967,420.26
  5. Step 5: Solve for x
    x = 116,278,967,420.26/381,824.85
  6. Step 6: Final answer
    x = 304,534.83

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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.