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Finding the Fourth Proportional to 500,198.56, 690,247.60 and 273,800.16

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Solution

The fourth proportional to 500,198.56, 690,247.60 and 273,800.16 is: 377,829.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,198.56 : 690,247.60 = 273,800.16 : x
  2. Step 2: Convert to fraction form
    500,198.56/690,247.60 = 273,800.16/x
  3. Step 3: Cross multiply
    500,198.56x = 690,247.60 × 273,800.16
  4. Step 4: Simplify right side
    500,198.56x = 188,989,903,319.62
  5. Step 5: Solve for x
    x = 188,989,903,319.62/500,198.56
  6. Step 6: Final answer
    x = 377,829.76

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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.