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Finding the Fourth Proportional to 362,629.70, 500,399.73 and 209,677.70

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Solution

The fourth proportional to 362,629.70, 500,399.73 and 209,677.70 is: 289,338.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,629.70 : 500,399.73 = 209,677.70 : x
  2. Step 2: Convert to fraction form
    362,629.70/500,399.73 = 209,677.70/x
  3. Step 3: Cross multiply
    362,629.70x = 500,399.73 × 209,677.70
  4. Step 4: Simplify right side
    362,629.70x = 104,922,664,467.02
  5. Step 5: Solve for x
    x = 104,922,664,467.02/362,629.70
  6. Step 6: Final answer
    x = 289,338.31

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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.