Finding the Fourth Proportional to 316.06, 473.96 and 130.99
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Solution
The fourth proportional to 316.06, 473.96 and 130.99 is: 196.43
Step by Step Solution
- Step 1: Write the proportion equation
316.06 : 473.96 = 130.99 : x - Step 2: Convert to fraction form
316.06/473.96 = 130.99/x - Step 3: Cross multiply
316.06x = 473.96 × 130.99 - Step 4: Simplify right side
316.06x = 62,082.46 - Step 5: Solve for x
x = 62,082.46/316.06 - Step 6: Final answer
x = 196.43
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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.