Finding the Fourth Proportional to 316.58, 474.93 and 133.99
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Solution
The fourth proportional to 316.58, 474.93 and 133.99 is: 201.01
Step by Step Solution
- Step 1: Write the proportion equation
316.58 : 474.93 = 133.99 : x - Step 2: Convert to fraction form
316.58/474.93 = 133.99/x - Step 3: Cross multiply
316.58x = 474.93 × 133.99 - Step 4: Simplify right side
316.58x = 63,634.68 - Step 5: Solve for x
x = 63,634.68/316.58 - Step 6: Final answer
x = 201.01
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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.