Finding the Fourth Proportional to 188,235.36, 259,765.20 and 103,357.80
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Solution
The fourth proportional to 188,235.36, 259,765.20 and 103,357.80 is: 142,633.99
Step by Step Solution
- Step 1: Write the proportion equation
188,235.36 : 259,765.20 = 103,357.80 : x - Step 2: Convert to fraction form
188,235.36/259,765.20 = 103,357.80/x - Step 3: Cross multiply
188,235.36x = 259,765.20 × 103,357.80 - Step 4: Simplify right side
188,235.36x = 26,848,759,588.56 - Step 5: Solve for x
x = 26,848,759,588.56/188,235.36 - Step 6: Final answer
x = 142,633.99
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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.