Finding the Fourth Proportional to 218.17, 301.08 and 119.93
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Solution
The fourth proportional to 218.17, 301.08 and 119.93 is: 165.51
Step by Step Solution
- Step 1: Write the proportion equation
218.17 : 301.08 = 119.93 : x - Step 2: Convert to fraction form
218.17/301.08 = 119.93/x - Step 3: Cross multiply
218.17x = 301.08 × 119.93 - Step 4: Simplify right side
218.17x = 36,108.52 - Step 5: Solve for x
x = 36,108.52/218.17 - Step 6: Final answer
x = 165.51
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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.