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Finding the Fourth Proportional to 222,297.50, 306,741.86 and 126,798.50

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Solution

The fourth proportional to 222,297.50, 306,741.86 and 126,798.50 is: 174,965.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,297.50 : 306,741.86 = 126,798.50 : x
  2. Step 2: Convert to fraction form
    222,297.50/306,741.86 = 126,798.50/x
  3. Step 3: Cross multiply
    222,297.50x = 306,741.86 × 126,798.50
  4. Step 4: Simplify right side
    222,297.50x = 38,894,407,735.21
  5. Step 5: Solve for x
    x = 38,894,407,735.21/222,297.50
  6. Step 6: Final answer
    x = 174,965.57

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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.