Finding the Fourth Proportional to 756,761.88, 1,135,109.99 and 188,131.08
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Solution
The fourth proportional to 756,761.88, 1,135,109.99 and 188,131.08 is: 282,188.46
Step by Step Solution
- Step 1: Write the proportion equation
756,761.88 : 1,135,109.99 = 188,131.08 : x - Step 2: Convert to fraction form
756,761.88/1,135,109.99 = 188,131.08/x - Step 3: Cross multiply
756,761.88x = 1,135,109.99 × 188,131.08 - Step 4: Simplify right side
756,761.88x = 213,549,468,337.49 - Step 5: Solve for x
x = 213,549,468,337.49/756,761.88 - Step 6: Final answer
x = 282,188.46
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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.