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Finding the Fourth Proportional to 383,408.15, 529,142.61 and 230,495.84

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Solution

The fourth proportional to 383,408.15, 529,142.61 and 230,495.84 is: 318,107.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,408.15 : 529,142.61 = 230,495.84 : x
  2. Step 2: Convert to fraction form
    383,408.15/529,142.61 = 230,495.84/x
  3. Step 3: Cross multiply
    383,408.15x = 529,142.61 × 230,495.84
  4. Step 4: Simplify right side
    383,408.15x = 121,965,170,371.74
  5. Step 5: Solve for x
    x = 121,965,170,371.74/383,408.15
  6. Step 6: Final answer
    x = 318,107.93

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