Finding the Fourth Proportional to 346,578.75, 478,278.68 and 187,602.75
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Solution
The fourth proportional to 346,578.75, 478,278.68 and 187,602.75 is: 258,891.80
Step by Step Solution
- Step 1: Write the proportion equation
346,578.75 : 478,278.68 = 187,602.75 : x - Step 2: Convert to fraction form
346,578.75/478,278.68 = 187,602.75/x - Step 3: Cross multiply
346,578.75x = 478,278.68 × 187,602.75 - Step 4: Simplify right side
346,578.75x = 89,726,394,696.36 - Step 5: Solve for x
x = 89,726,394,696.36/346,578.75 - Step 6: Final answer
x = 258,891.80
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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.