Finding the Fourth Proportional to 188,694.75, 260,398.77 and 103,809.99
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Solution
The fourth proportional to 188,694.75, 260,398.77 and 103,809.99 is: 143,257.79
Step by Step Solution
- Step 1: Write the proportion equation
188,694.75 : 260,398.77 = 103,809.99 : x - Step 2: Convert to fraction form
188,694.75/260,398.77 = 103,809.99/x - Step 3: Cross multiply
188,694.75x = 260,398.77 × 103,809.99 - Step 4: Simplify right side
188,694.75x = 27,031,993,709.71 - Step 5: Solve for x
x = 27,031,993,709.71/188,694.75 - Step 6: Final answer
x = 143,257.79
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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.