Finding the Fourth Proportional to 207,326.79, 310,991.94 and 57,578.76
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Solution
The fourth proportional to 207,326.79, 310,991.94 and 57,578.76 is: 86,368.63
Step by Step Solution
- Step 1: Write the proportion equation
207,326.79 : 310,991.94 = 57,578.76 : x - Step 2: Convert to fraction form
207,326.79/310,991.94 = 57,578.76/x - Step 3: Cross multiply
207,326.79x = 310,991.94 × 57,578.76 - Step 4: Simplify right side
207,326.79x = 17,906,530,275.19 - Step 5: Solve for x
x = 17,906,530,275.19/207,326.79 - Step 6: Final answer
x = 86,368.63
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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.