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Finding the Fourth Proportional to 199,327.44, 299,070.78 and 81,008.04

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Solution

The fourth proportional to 199,327.44, 299,070.78 and 81,008.04 is: 121,544.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,327.44 : 299,070.78 = 81,008.04 : x
  2. Step 2: Convert to fraction form
    199,327.44/299,070.78 = 81,008.04/x
  3. Step 3: Cross multiply
    199,327.44x = 299,070.78 × 81,008.04
  4. Step 4: Simplify right side
    199,327.44x = 24,227,137,709.07
  5. Step 5: Solve for x
    x = 24,227,137,709.07/199,327.44
  6. Step 6: Final answer
    x = 121,544.42

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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.