Finding the Fourth Proportional to 153.14, 211.33 and 84.14
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Solution
The fourth proportional to 153.14, 211.33 and 84.14 is: 116.11
Step by Step Solution
- Step 1: Write the proportion equation
153.14 : 211.33 = 84.14 : x - Step 2: Convert to fraction form
153.14/211.33 = 84.14/x - Step 3: Cross multiply
153.14x = 211.33 × 84.14 - Step 4: Simplify right side
153.14x = 17,781.31 - Step 5: Solve for x
x = 17,781.31/153.14 - Step 6: Final answer
x = 116.11
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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.