Finding the Fourth Proportional to 306,218.12, 459,290.52 and 81,594.99
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Solution
The fourth proportional to 306,218.12, 459,290.52 and 81,594.99 is: 122,382.72
Step by Step Solution
- Step 1: Write the proportion equation
306,218.12 : 459,290.52 = 81,594.99 : x - Step 2: Convert to fraction form
306,218.12/459,290.52 = 81,594.99/x - Step 3: Cross multiply
306,218.12x = 459,290.52 × 81,594.99 - Step 4: Simplify right side
306,218.12x = 37,475,805,386.49 - Step 5: Solve for x
x = 37,475,805,386.49/306,218.12 - Step 6: Final answer
x = 122,382.72
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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.