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Finding the Fourth Proportional to 299,593.07, 449,365 and 89,231.01

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Solution

The fourth proportional to 299,593.07, 449,365 and 89,231.01 is: 133,839.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,593.07 : 449,365 = 89,231.01 : x
  2. Step 2: Convert to fraction form
    299,593.07/449,365 = 89,231.01/x
  3. Step 3: Cross multiply
    299,593.07x = 449,365 × 89,231.01
  4. Step 4: Simplify right side
    299,593.07x = 40,097,292,808.65
  5. Step 5: Solve for x
    x = 40,097,292,808.65/299,593.07
  6. Step 6: Final answer
    x = 133,839.19

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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.