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Finding the Fourth Proportional to 199,329.44, 299,073.78 and 81,010.04

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Solution

The fourth proportional to 199,329.44, 299,073.78 and 81,010.04 is: 121,547.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,329.44 : 299,073.78 = 81,010.04 : x
  2. Step 2: Convert to fraction form
    199,329.44/299,073.78 = 81,010.04/x
  3. Step 3: Cross multiply
    199,329.44x = 299,073.78 × 81,010.04
  4. Step 4: Simplify right side
    199,329.44x = 24,227,978,880.75
  5. Step 5: Solve for x
    x = 24,227,978,880.75/199,329.44
  6. Step 6: Final answer
    x = 121,547.42

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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.