Finding the Fourth Proportional to 279,696.43, 385,969.67 and 170,982.79
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Solution
The fourth proportional to 279,696.43, 385,969.67 and 170,982.79 is: 235,949.28
Step by Step Solution
- Step 1: Write the proportion equation
279,696.43 : 385,969.67 = 170,982.79 : x - Step 2: Convert to fraction form
279,696.43/385,969.67 = 170,982.79/x - Step 3: Cross multiply
279,696.43x = 385,969.67 × 170,982.79 - Step 4: Simplify right side
279,696.43x = 65,994,171,031.98 - Step 5: Solve for x
x = 65,994,171,031.98/279,696.43 - Step 6: Final answer
x = 235,949.28
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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.