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Finding the Fourth Proportional to 222,457.26, 306,990.90 and 120,482.72

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Solution

The fourth proportional to 222,457.26, 306,990.90 and 120,482.72 is: 166,266.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,457.26 : 306,990.90 = 120,482.72 : x
  2. Step 2: Convert to fraction form
    222,457.26/306,990.90 = 120,482.72/x
  3. Step 3: Cross multiply
    222,457.26x = 306,990.90 × 120,482.72
  4. Step 4: Simplify right side
    222,457.26x = 36,987,098,647.25
  5. Step 5: Solve for x
    x = 36,987,098,647.25/222,457.26
  6. Step 6: Final answer
    x = 166,266.09

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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.