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Finding the Fourth Proportional to 168,009, 252,018.36 and 43,350

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Solution

The fourth proportional to 168,009, 252,018.36 and 43,350 is: 65,026.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,009 : 252,018.36 = 43,350 : x
  2. Step 2: Convert to fraction form
    168,009/252,018.36 = 43,350/x
  3. Step 3: Cross multiply
    168,009x = 252,018.36 × 43,350
  4. Step 4: Simplify right side
    168,009x = 10,924,995,906
  5. Step 5: Solve for x
    x = 10,924,995,906/168,009
  6. Step 6: Final answer
    x = 65,026.25

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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.