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Finding the Fourth Proportional to 387,361.08, 534,508.56 and 226,099.44

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Solution

The fourth proportional to 387,361.08, 534,508.56 and 226,099.44 is: 311,988.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,361.08 : 534,508.56 = 226,099.44 : x
  2. Step 2: Convert to fraction form
    387,361.08/534,508.56 = 226,099.44/x
  3. Step 3: Cross multiply
    387,361.08x = 534,508.56 × 226,099.44
  4. Step 4: Simplify right side
    387,361.08x = 120,852,086,091.21
  5. Step 5: Solve for x
    x = 120,852,086,091.21/387,361.08
  6. Step 6: Final answer
    x = 311,988.20

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.