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Finding the Fourth Proportional to 422,492.00, 633,837.71 and 138,181.48

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Solution

The fourth proportional to 422,492.00, 633,837.71 and 138,181.48 is: 207,304.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,492.00 : 633,837.71 = 138,181.48 : x
  2. Step 2: Convert to fraction form
    422,492.00/633,837.71 = 138,181.48/x
  3. Step 3: Cross multiply
    422,492.00x = 633,837.71 × 138,181.48
  4. Step 4: Simplify right side
    422,492.00x = 87,584,631,608.47
  5. Step 5: Solve for x
    x = 87,584,631,608.47/422,492.00
  6. Step 6: Final answer
    x = 207,304.83

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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.