Finding the Fourth Proportional to 188,645.09, 260,328.96 and 106,988.88
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Solution
The fourth proportional to 188,645.09, 260,328.96 and 106,988.88 is: 147,643.94
Step by Step Solution
- Step 1: Write the proportion equation
188,645.09 : 260,328.96 = 106,988.88 : x - Step 2: Convert to fraction form
188,645.09/260,328.96 = 106,988.88/x - Step 3: Cross multiply
188,645.09x = 260,328.96 × 106,988.88 - Step 4: Simplify right side
188,645.09x = 27,852,303,861.96 - Step 5: Solve for x
x = 27,852,303,861.96/188,645.09 - Step 6: Final answer
x = 147,643.94
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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.