Finding the Fourth Proportional to 356, 491.44 and 218.08
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Solution
The fourth proportional to 356, 491.44 and 218.08 is: 301.05
Step by Step Solution
- Step 1: Write the proportion equation
356 : 491.44 = 218.08 : x - Step 2: Convert to fraction form
356/491.44 = 218.08/x - Step 3: Cross multiply
356x = 491.44 × 218.08 - Step 4: Simplify right side
356x = 107,173.24 - Step 5: Solve for x
x = 107,173.24/356 - Step 6: Final answer
x = 301.05
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.