Finding the Fourth Proportional to 358,137.47, 494,221.66 and 196,988.99
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Solution
The fourth proportional to 358,137.47, 494,221.66 and 196,988.99 is: 271,840.37
Step by Step Solution
- Step 1: Write the proportion equation
358,137.47 : 494,221.66 = 196,988.99 : x - Step 2: Convert to fraction form
358,137.47/494,221.66 = 196,988.99/x - Step 3: Cross multiply
358,137.47x = 494,221.66 × 196,988.99 - Step 4: Simplify right side
358,137.47x = 97,356,222,675.94 - Step 5: Solve for x
x = 97,356,222,675.94/358,137.47 - Step 6: Final answer
x = 271,840.37
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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.