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Finding the Fourth Proportional to 318,652.42, 439,745.88 and 182,708.50

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Solution

The fourth proportional to 318,652.42, 439,745.88 and 182,708.50 is: 252,140.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,652.42 : 439,745.88 = 182,708.50 : x
  2. Step 2: Convert to fraction form
    318,652.42/439,745.88 = 182,708.50/x
  3. Step 3: Cross multiply
    318,652.42x = 439,745.88 × 182,708.50
  4. Step 4: Simplify right side
    318,652.42x = 80,345,310,115.98
  5. Step 5: Solve for x
    x = 80,345,310,115.98/318,652.42
  6. Step 6: Final answer
    x = 252,140.91

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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.