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Finding the Fourth Proportional to 299,349, 449,112.60 and 172,958.22

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Solution

The fourth proportional to 299,349, 449,112.60 and 172,958.22 is: 259,488.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,349 : 449,112.60 = 172,958.22 : x
  2. Step 2: Convert to fraction form
    299,349/449,112.60 = 172,958.22/x
  3. Step 3: Cross multiply
    299,349x = 449,112.60 × 172,958.22
  4. Step 4: Simplify right side
    299,349x = 77,677,715,875.57
  5. Step 5: Solve for x
    x = 77,677,715,875.57/299,349
  6. Step 6: Final answer
    x = 259,488.81

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1.5x scale

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.