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Finding the Fourth Proportional to 339,395.60, 468,350.78 and 203,504.55

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Solution

The fourth proportional to 339,395.60, 468,350.78 and 203,504.55 is: 280,827.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,395.60 : 468,350.78 = 203,504.55 : x
  2. Step 2: Convert to fraction form
    339,395.60/468,350.78 = 203,504.55/x
  3. Step 3: Cross multiply
    339,395.60x = 468,350.78 × 203,504.55
  4. Step 4: Simplify right side
    339,395.60x = 95,311,513,708.53
  5. Step 5: Solve for x
    x = 95,311,513,708.53/339,395.60
  6. Step 6: Final answer
    x = 280,827.20

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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.