Finding the Fourth Proportional to 316.44, 473.99 and 223.70
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Solution
The fourth proportional to 316.44, 473.99 and 223.70 is: 335.07
Step by Step Solution
- Step 1: Write the proportion equation
316.44 : 473.99 = 223.70 : x - Step 2: Convert to fraction form
316.44/473.99 = 223.70/x - Step 3: Cross multiply
316.44x = 473.99 × 223.70 - Step 4: Simplify right side
316.44x = 106,028.07 - Step 5: Solve for x
x = 106,028.07/316.44 - Step 6: Final answer
x = 335.07
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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.