Home / 225,733.98-311,544.60-139,720.56

Finding the Fourth Proportional to 225,733.98, 311,544.60 and 139,720.56

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Solution

The fourth proportional to 225,733.98, 311,544.60 and 139,720.56 is: 192,834.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,733.98 : 311,544.60 = 139,720.56 : x
  2. Step 2: Convert to fraction form
    225,733.98/311,544.60 = 139,720.56/x
  3. Step 3: Cross multiply
    225,733.98x = 311,544.60 × 139,720.56
  4. Step 4: Simplify right side
    225,733.98x = 43,529,185,976.98
  5. Step 5: Solve for x
    x = 43,529,185,976.98/225,733.98
  6. Step 6: Final answer
    x = 192,834.00

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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.