Finding the Fourth Proportional to 313,636.36, 432,786.96 and 177,643.24
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Solution
The fourth proportional to 313,636.36, 432,786.96 and 177,643.24 is: 245,129.99
Step by Step Solution
- Step 1: Write the proportion equation
313,636.36 : 432,786.96 = 177,643.24 : x - Step 2: Convert to fraction form
313,636.36/432,786.96 = 177,643.24/x - Step 3: Cross multiply
313,636.36x = 432,786.96 × 177,643.24 - Step 4: Simplify right side
313,636.36x = 76,881,677,804.15 - Step 5: Solve for x
x = 76,881,677,804.15/313,636.36 - Step 6: Final answer
x = 245,129.99
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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.