Finding the Fourth Proportional to 320,772.14, 442,619.21 and 177,531.84
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Solution
The fourth proportional to 320,772.14, 442,619.21 and 177,531.84 is: 244,968.29
Step by Step Solution
- Step 1: Write the proportion equation
320,772.14 : 442,619.21 = 177,531.84 : x - Step 2: Convert to fraction form
320,772.14/442,619.21 = 177,531.84/x - Step 3: Cross multiply
320,772.14x = 442,619.21 × 177,531.84 - Step 4: Simplify right side
320,772.14x = 78,579,001,882.99 - Step 5: Solve for x
x = 78,579,001,882.99/320,772.14 - Step 6: Final answer
x = 244,968.29
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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.