Finding the Fourth Proportional to 382,228.64, 525,721.92 and 306,611.36
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Solution
The fourth proportional to 382,228.64, 525,721.92 and 306,611.36 is: 421,716.99
Step by Step Solution
- Step 1: Write the proportion equation
382,228.64 : 525,721.92 = 306,611.36 : x - Step 2: Convert to fraction form
382,228.64/525,721.92 = 306,611.36/x - Step 3: Cross multiply
382,228.64x = 525,721.92 × 306,611.36 - Step 4: Simplify right side
382,228.64x = 161,192,312,873.01 - Step 5: Solve for x
x = 161,192,312,873.01/382,228.64 - Step 6: Final answer
x = 421,716.99
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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.