Finding the Fourth Proportional to 276,938.12, 382,174.80 and 149,613.68
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Solution
The fourth proportional to 276,938.12, 382,174.80 and 149,613.68 is: 206,466.98
Step by Step Solution
- Step 1: Write the proportion equation
276,938.12 : 382,174.80 = 149,613.68 : x - Step 2: Convert to fraction form
276,938.12/382,174.80 = 149,613.68/x - Step 3: Cross multiply
276,938.12x = 382,174.80 × 149,613.68 - Step 4: Simplify right side
276,938.12x = 57,178,578,231.26 - Step 5: Solve for x
x = 57,178,578,231.26/276,938.12 - Step 6: Final answer
x = 206,466.98
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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.