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Finding the Fourth Proportional to 222,467.81, 307,003.72 and 120,490.90

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Solution

The fourth proportional to 222,467.81, 307,003.72 and 120,490.90 is: 166,276.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,467.81 : 307,003.72 = 120,490.90 : x
  2. Step 2: Convert to fraction form
    222,467.81/307,003.72 = 120,490.90/x
  3. Step 3: Cross multiply
    222,467.81x = 307,003.72 × 120,490.90
  4. Step 4: Simplify right side
    222,467.81x = 36,991,154,992.43
  5. Step 5: Solve for x
    x = 36,991,154,992.43/222,467.81
  6. Step 6: Final answer
    x = 166,276.44

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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.