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Finding the Fourth Proportional to 339,310.68, 468,269.84 and 188,408.76

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Solution

The fourth proportional to 339,310.68, 468,269.84 and 188,408.76 is: 260,015.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,310.68 : 468,269.84 = 188,408.76 : x
  2. Step 2: Convert to fraction form
    339,310.68/468,269.84 = 188,408.76/x
  3. Step 3: Cross multiply
    339,310.68x = 468,269.84 × 188,408.76
  4. Step 4: Simplify right side
    339,310.68x = 88,226,139,899.80
  5. Step 5: Solve for x
    x = 88,226,139,899.80/339,310.68
  6. Step 6: Final answer
    x = 260,015.81

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1.5x scale

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.