Finding the Fourth Proportional to 355,536.30, 490,647.78 and 212,269.62
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Solution
The fourth proportional to 355,536.30, 490,647.78 and 212,269.62 is: 292,936.66
Step by Step Solution
- Step 1: Write the proportion equation
355,536.30 : 490,647.78 = 212,269.62 : x - Step 2: Convert to fraction form
355,536.30/490,647.78 = 212,269.62/x - Step 3: Cross multiply
355,536.30x = 490,647.78 × 212,269.62 - Step 4: Simplify right side
355,536.30x = 104,149,617,814.44 - Step 5: Solve for x
x = 104,149,617,814.44/355,536.30 - Step 6: Final answer
x = 292,936.66
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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.