Finding the Fourth Proportional to 171.79, 237.08 and 98.09
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Solution
The fourth proportional to 171.79, 237.08 and 98.09 is: 135.37
Step by Step Solution
- Step 1: Write the proportion equation
171.79 : 237.08 = 98.09 : x - Step 2: Convert to fraction form
171.79/237.08 = 98.09/x - Step 3: Cross multiply
171.79x = 237.08 × 98.09 - Step 4: Simplify right side
171.79x = 23,254.24 - Step 5: Solve for x
x = 23,254.24/171.79 - Step 6: Final answer
x = 135.37
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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.