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Finding the Fourth Proportional to 222,105.67, 306,513.08 and 121,503.67

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Solution

The fourth proportional to 222,105.67, 306,513.08 and 121,503.67 is: 167,679.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,105.67 : 306,513.08 = 121,503.67 : x
  2. Step 2: Convert to fraction form
    222,105.67/306,513.08 = 121,503.67/x
  3. Step 3: Cross multiply
    222,105.67x = 306,513.08 × 121,503.67
  4. Step 4: Simplify right side
    222,105.67x = 37,242,463,515.49
  5. Step 5: Solve for x
    x = 37,242,463,515.49/222,105.67
  6. Step 6: Final answer
    x = 167,679.03

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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.