Finding the Fourth Proportional to 305,150.11, 421,131.99 and 169,226.65
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Solution
The fourth proportional to 305,150.11, 421,131.99 and 169,226.65 is: 233,546.55
Step by Step Solution
- Step 1: Write the proportion equation
305,150.11 : 421,131.99 = 169,226.65 : x - Step 2: Convert to fraction form
305,150.11/421,131.99 = 169,226.65/x - Step 3: Cross multiply
305,150.11x = 421,131.99 × 169,226.65 - Step 4: Simplify right side
305,150.11x = 71,266,755,875.53 - Step 5: Solve for x
x = 71,266,755,875.53/305,150.11 - Step 6: Final answer
x = 233,546.55
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1.5x scale
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.