Finding the Fourth Proportional to 316.99, 475.23 and 154.63
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Solution
The fourth proportional to 316.99, 475.23 and 154.63 is: 231.82
Step by Step Solution
- Step 1: Write the proportion equation
316.99 : 475.23 = 154.63 : x - Step 2: Convert to fraction form
316.99/475.23 = 154.63/x - Step 3: Cross multiply
316.99x = 475.23 × 154.63 - Step 4: Simplify right side
316.99x = 73,484.81 - Step 5: Solve for x
x = 73,484.81/316.99 - Step 6: Final answer
x = 231.82
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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.