Finding the Fourth Proportional to 306.74, 423.14 and 219.26
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Solution
The fourth proportional to 306.74, 423.14 and 219.26 is: 302.46
Step by Step Solution
- Step 1: Write the proportion equation
306.74 : 423.14 = 219.26 : x - Step 2: Convert to fraction form
306.74/423.14 = 219.26/x - Step 3: Cross multiply
306.74x = 423.14 × 219.26 - Step 4: Simplify right side
306.74x = 92,777.68 - Step 5: Solve for x
x = 92,777.68/306.74 - Step 6: Final answer
x = 302.46
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.