Home / 222,140.12-306,234.53-158,367.20

Finding the Fourth Proportional to 222,140.12, 306,234.53 and 158,367.20

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Solution

The fourth proportional to 222,140.12, 306,234.53 and 158,367.20 is: 218,319.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,140.12 : 306,234.53 = 158,367.20 : x
  2. Step 2: Convert to fraction form
    222,140.12/306,234.53 = 158,367.20/x
  3. Step 3: Cross multiply
    222,140.12x = 306,234.53 × 158,367.20
  4. Step 4: Simplify right side
    222,140.12x = 48,497,505,033.17
  5. Step 5: Solve for x
    x = 48,497,505,033.17/222,140.12
  6. Step 6: Final answer
    x = 218,319.43

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1.5x scale

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.