Home / 217,571.64-300,251.40-131,535.36

Finding the Fourth Proportional to 217,571.64, 300,251.40 and 131,535.36

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Solution

The fourth proportional to 217,571.64, 300,251.40 and 131,535.36 is: 181,520.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,571.64 : 300,251.40 = 131,535.36 : x
  2. Step 2: Convert to fraction form
    217,571.64/300,251.40 = 131,535.36/x
  3. Step 3: Cross multiply
    217,571.64x = 300,251.40 × 131,535.36
  4. Step 4: Simplify right side
    217,571.64x = 39,493,675,989.50
  5. Step 5: Solve for x
    x = 39,493,675,989.50/217,571.64
  6. Step 6: Final answer
    x = 181,520.33

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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.