Finding the Fourth Proportional to 319.70, 441.08 and 188.68
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Solution
The fourth proportional to 319.70, 441.08 and 188.68 is: 260.31
Step by Step Solution
- Step 1: Write the proportion equation
319.70 : 441.08 = 188.68 : x - Step 2: Convert to fraction form
319.70/441.08 = 188.68/x - Step 3: Cross multiply
319.70x = 441.08 × 188.68 - Step 4: Simplify right side
319.70x = 83,220.93 - Step 5: Solve for x
x = 83,220.93/319.70 - Step 6: Final answer
x = 260.31
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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.