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Finding the Fourth Proportional to 299,536.48, 449,154.48 and 99,786.64

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Solution

The fourth proportional to 299,536.48, 449,154.48 and 99,786.64 is: 149,629.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,536.48 : 449,154.48 = 99,786.64 : x
  2. Step 2: Convert to fraction form
    299,536.48/449,154.48 = 99,786.64/x
  3. Step 3: Cross multiply
    299,536.48x = 449,154.48 × 99,786.64
  4. Step 4: Simplify right side
    299,536.48x = 44,819,616,400.15
  5. Step 5: Solve for x
    x = 44,819,616,400.15/299,536.48
  6. Step 6: Final answer
    x = 149,629.91

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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.