Finding the Fourth Proportional to 356.55, 534.44 and 161.66
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Solution
The fourth proportional to 356.55, 534.44 and 161.66 is: 242.31
Step by Step Solution
- Step 1: Write the proportion equation
356.55 : 534.44 = 161.66 : x - Step 2: Convert to fraction form
356.55/534.44 = 161.66/x - Step 3: Cross multiply
356.55x = 534.44 × 161.66 - Step 4: Simplify right side
356.55x = 86,394.09 - Step 5: Solve for x
x = 86,394.09/356.55 - Step 6: Final answer
x = 242.31
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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.