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Finding the Fourth Proportional to 379,408.89, 569,188.06 and 113,163.51

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Solution

The fourth proportional to 379,408.89, 569,188.06 and 113,163.51 is: 169,767.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,408.89 : 569,188.06 = 113,163.51 : x
  2. Step 2: Convert to fraction form
    379,408.89/569,188.06 = 113,163.51/x
  3. Step 3: Cross multiply
    379,408.89x = 569,188.06 × 113,163.51
  4. Step 4: Simplify right side
    379,408.89x = 64,411,321,207.78
  5. Step 5: Solve for x
    x = 64,411,321,207.78/379,408.89
  6. Step 6: Final answer
    x = 169,767.56

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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.