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Finding the Fourth Proportional to 339,396.60, 468,352.15 and 203,505.55

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Solution

The fourth proportional to 339,396.60, 468,352.15 and 203,505.55 is: 280,828.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,396.60 : 468,352.15 = 203,505.55 : x
  2. Step 2: Convert to fraction form
    339,396.60/468,352.15 = 203,505.55/x
  3. Step 3: Cross multiply
    339,396.60x = 468,352.15 × 203,505.55
  4. Step 4: Simplify right side
    339,396.60x = 95,312,261,879.43
  5. Step 5: Solve for x
    x = 95,312,261,879.43/339,396.60
  6. Step 6: Final answer
    x = 280,828.57

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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.