Finding the Fourth Proportional to 204,015.80, 305,813.10 and 91,749.80
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Solution
The fourth proportional to 204,015.80, 305,813.10 and 91,749.80 is: 137,529.99
Step by Step Solution
- Step 1: Write the proportion equation
204,015.80 : 305,813.10 = 91,749.80 : x - Step 2: Convert to fraction form
204,015.80/305,813.10 = 91,749.80/x - Step 3: Cross multiply
204,015.80x = 305,813.10 × 91,749.80 - Step 4: Simplify right side
204,015.80x = 28,058,290,762.38 - Step 5: Solve for x
x = 28,058,290,762.38/204,015.80 - Step 6: Final answer
x = 137,529.99
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.