Finding the Fourth Proportional to 405,349.68, 559,382.69 and 221,589.05
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Solution
The fourth proportional to 405,349.68, 559,382.69 and 221,589.05 is: 305,792.96
Step by Step Solution
- Step 1: Write the proportion equation
405,349.68 : 559,382.69 = 221,589.05 : x - Step 2: Convert to fraction form
405,349.68/559,382.69 = 221,589.05/x - Step 3: Cross multiply
405,349.68x = 559,382.69 × 221,589.05 - Step 4: Simplify right side
405,349.68x = 123,953,078,105.21 - Step 5: Solve for x
x = 123,953,078,105.21/405,349.68 - Step 6: Final answer
x = 305,792.96
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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.