Finding the Fourth Proportional to 306.48, 456.99 and 302.70
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Solution
The fourth proportional to 306.48, 456.99 and 302.70 is: 451.35
Step by Step Solution
- Step 1: Write the proportion equation
306.48 : 456.99 = 302.70 : x - Step 2: Convert to fraction form
306.48/456.99 = 302.70/x - Step 3: Cross multiply
306.48x = 456.99 × 302.70 - Step 4: Simplify right side
306.48x = 138,330.87 - Step 5: Solve for x
x = 138,330.87/306.48 - Step 6: Final answer
x = 451.35
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.