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Finding the Fourth Proportional to 374,791.56, 561,286.38 and 214,381.32

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Solution

The fourth proportional to 374,791.56, 561,286.38 and 214,381.32 is: 321,056.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,791.56 : 561,286.38 = 214,381.32 : x
  2. Step 2: Convert to fraction form
    374,791.56/561,286.38 = 214,381.32/x
  3. Step 3: Cross multiply
    374,791.56x = 561,286.38 × 214,381.32
  4. Step 4: Simplify right side
    374,791.56x = 120,329,315,042.42
  5. Step 5: Solve for x
    x = 120,329,315,042.42/374,791.56
  6. Step 6: Final answer
    x = 321,056.63

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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.