Finding the Fourth Proportional to 146.51, 202.18 and 84.31
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Solution
The fourth proportional to 146.51, 202.18 and 84.31 is: 116.34
Step by Step Solution
- Step 1: Write the proportion equation
146.51 : 202.18 = 84.31 : x - Step 2: Convert to fraction form
146.51/202.18 = 84.31/x - Step 3: Cross multiply
146.51x = 202.18 × 84.31 - Step 4: Simplify right side
146.51x = 17,045.24 - Step 5: Solve for x
x = 17,045.24/146.51 - Step 6: Final answer
x = 116.34
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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.