Home / 222,128.06-306,217.88-158,355.14

Finding the Fourth Proportional to 222,128.06, 306,217.88 and 158,355.14

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Solution

The fourth proportional to 222,128.06, 306,217.88 and 158,355.14 is: 218,302.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,128.06 : 306,217.88 = 158,355.14 : x
  2. Step 2: Convert to fraction form
    222,128.06/306,217.88 = 158,355.14/x
  3. Step 3: Cross multiply
    222,128.06x = 306,217.88 × 158,355.14
  4. Step 4: Simplify right side
    222,128.06x = 48,491,175,257.90
  5. Step 5: Solve for x
    x = 48,491,175,257.90/222,128.06
  6. Step 6: Final answer
    x = 218,302.79

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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.