Finding the Fourth Proportional to 379,639.74, 524,006.79 and 236,314.70
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Solution
The fourth proportional to 379,639.74, 524,006.79 and 236,314.70 is: 326,178.98
Step by Step Solution
- Step 1: Write the proportion equation
379,639.74 : 524,006.79 = 236,314.70 : x - Step 2: Convert to fraction form
379,639.74/524,006.79 = 236,314.70/x - Step 3: Cross multiply
379,639.74x = 524,006.79 × 236,314.70 - Step 4: Simplify right side
379,639.74x = 123,830,504,756.78 - Step 5: Solve for x
x = 123,830,504,756.78/379,639.74 - Step 6: Final answer
x = 326,178.98
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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.