Finding the Fourth Proportional to 236.08, 325.79 and 129.74
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Solution
The fourth proportional to 236.08, 325.79 and 129.74 is: 179.04
Step by Step Solution
- Step 1: Write the proportion equation
236.08 : 325.79 = 129.74 : x - Step 2: Convert to fraction form
236.08/325.79 = 129.74/x - Step 3: Cross multiply
236.08x = 325.79 × 129.74 - Step 4: Simplify right side
236.08x = 42,267.99 - Step 5: Solve for x
x = 42,267.99/236.08 - Step 6: Final answer
x = 179.04
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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.