Finding the Fourth Proportional to 218,680.29, 301,880.12 and 154,202.06
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Solution
The fourth proportional to 218,680.29, 301,880.12 and 154,202.06 is: 212,870.28
Step by Step Solution
- Step 1: Write the proportion equation
218,680.29 : 301,880.12 = 154,202.06 : x - Step 2: Convert to fraction form
218,680.29/301,880.12 = 154,202.06/x - Step 3: Cross multiply
218,680.29x = 301,880.12 × 154,202.06 - Step 4: Simplify right side
218,680.29x = 46,550,534,096.64 - Step 5: Solve for x
x = 46,550,534,096.64/218,680.29 - Step 6: Final answer
x = 212,870.28
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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.