Finding the Fourth Proportional to 367.53, 551.68 and 221.63
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Solution
The fourth proportional to 367.53, 551.68 and 221.63 is: 332.68
Step by Step Solution
- Step 1: Write the proportion equation
367.53 : 551.68 = 221.63 : x - Step 2: Convert to fraction form
367.53/551.68 = 221.63/x - Step 3: Cross multiply
367.53x = 551.68 × 221.63 - Step 4: Simplify right side
367.53x = 122,268.84 - Step 5: Solve for x
x = 122,268.84/367.53 - Step 6: Final answer
x = 332.68
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.