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Finding the Fourth Proportional to 222,653.64, 333,192 and 138,453.40

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Solution

The fourth proportional to 222,653.64, 333,192 and 138,453.40 is: 207,189.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,653.64 : 333,192 = 138,453.40 : x
  2. Step 2: Convert to fraction form
    222,653.64/333,192 = 138,453.40/x
  3. Step 3: Cross multiply
    222,653.64x = 333,192 × 138,453.40
  4. Step 4: Simplify right side
    222,653.64x = 46,131,565,252.80
  5. Step 5: Solve for x
    x = 46,131,565,252.80/222,653.64
  6. Step 6: Final answer
    x = 207,189.81

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.