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Finding the Fourth Proportional to 299,147.34, 448,469.33 and 139,141.97

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Solution

The fourth proportional to 299,147.34, 448,469.33 and 139,141.97 is: 208,595.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,147.34 : 448,469.33 = 139,141.97 : x
  2. Step 2: Convert to fraction form
    299,147.34/448,469.33 = 139,141.97/x
  3. Step 3: Cross multiply
    299,147.34x = 448,469.33 × 139,141.97
  4. Step 4: Simplify right side
    299,147.34x = 62,400,904,804.48
  5. Step 5: Solve for x
    x = 62,400,904,804.48/299,147.34
  6. Step 6: Final answer
    x = 208,595.88

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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.