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Finding the Fourth Proportional to 222,154.62, 333,238.29 and 87,213.09

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Solution

The fourth proportional to 222,154.62, 333,238.29 and 87,213.09 is: 130,822.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,154.62 : 333,238.29 = 87,213.09 : x
  2. Step 2: Convert to fraction form
    222,154.62/333,238.29 = 87,213.09/x
  3. Step 3: Cross multiply
    222,154.62x = 333,238.29 × 87,213.09
  4. Step 4: Simplify right side
    222,154.62x = 29,062,740,977.22
  5. Step 5: Solve for x
    x = 29,062,740,977.22/222,154.62
  6. Step 6: Final answer
    x = 130,822.13

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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.