Finding the Fourth Proportional to 216,637.74, 324,837.54 and 66,837.15
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Solution
The fourth proportional to 216,637.74, 324,837.54 and 66,837.15 is: 100,218.99
Step by Step Solution
- Step 1: Write the proportion equation
216,637.74 : 324,837.54 = 66,837.15 : x - Step 2: Convert to fraction form
216,637.74/324,837.54 = 66,837.15/x - Step 3: Cross multiply
216,637.74x = 324,837.54 × 66,837.15 - Step 4: Simplify right side
216,637.74x = 21,711,215,386.61 - Step 5: Solve for x
x = 21,711,215,386.61/216,637.74 - Step 6: Final answer
x = 100,218.99
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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.