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Finding the Fourth Proportional to 299,609.37, 449,415.77 and 99,929.18

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Solution

The fourth proportional to 299,609.37, 449,415.77 and 99,929.18 is: 149,894.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,609.37 : 449,415.77 = 99,929.18 : x
  2. Step 2: Convert to fraction form
    299,609.37/449,415.77 = 99,929.18/x
  3. Step 3: Cross multiply
    299,609.37x = 449,415.77 × 99,929.18
  4. Step 4: Simplify right side
    299,609.37x = 44,909,746,628.44
  5. Step 5: Solve for x
    x = 44,909,746,628.44/299,609.37
  6. Step 6: Final answer
    x = 149,894.33

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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.