Finding the Fourth Proportional to 313,370.79, 432,478.45 and 177,428.69
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Solution
The fourth proportional to 313,370.79, 432,478.45 and 177,428.69 is: 244,866.75
Step by Step Solution
- Step 1: Write the proportion equation
313,370.79 : 432,478.45 = 177,428.69 : x - Step 2: Convert to fraction form
313,370.79/432,478.45 = 177,428.69/x - Step 3: Cross multiply
313,370.79x = 432,478.45 × 177,428.69 - Step 4: Simplify right side
313,370.79x = 76,734,084,517.92 - Step 5: Solve for x
x = 76,734,084,517.92/313,370.79 - Step 6: Final answer
x = 244,866.75
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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.