Finding the Fourth Proportional to 236.64, 354.99 and 133.71
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Solution
The fourth proportional to 236.64, 354.99 and 133.71 is: 200.58
Step by Step Solution
- Step 1: Write the proportion equation
236.64 : 354.99 = 133.71 : x - Step 2: Convert to fraction form
236.64/354.99 = 133.71/x - Step 3: Cross multiply
236.64x = 354.99 × 133.71 - Step 4: Simplify right side
236.64x = 47,465.71 - Step 5: Solve for x
x = 47,465.71/236.64 - Step 6: Final answer
x = 200.58
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.