Finding the Fourth Proportional to 215.99, 298.09 and 133.08
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Solution
The fourth proportional to 215.99, 298.09 and 133.08 is: 183.67
Step by Step Solution
- Step 1: Write the proportion equation
215.99 : 298.09 = 133.08 : x - Step 2: Convert to fraction form
215.99/298.09 = 133.08/x - Step 3: Cross multiply
215.99x = 298.09 × 133.08 - Step 4: Simplify right side
215.99x = 39,669.82 - Step 5: Solve for x
x = 39,669.82/215.99 - Step 6: Final answer
x = 183.67
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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.