Home / 268,453.20-402,682.22-81,464.70

Finding the Fourth Proportional to 268,453.20, 402,682.22 and 81,464.70

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Solution

The fourth proportional to 268,453.20, 402,682.22 and 81,464.70 is: 122,197.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,453.20 : 402,682.22 = 81,464.70 : x
  2. Step 2: Convert to fraction form
    268,453.20/402,682.22 = 81,464.70/x
  3. Step 3: Cross multiply
    268,453.20x = 402,682.22 × 81,464.70
  4. Step 4: Simplify right side
    268,453.20x = 32,804,386,247.63
  5. Step 5: Solve for x
    x = 32,804,386,247.63/268,453.20
  6. Step 6: Final answer
    x = 122,197.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.