Finding the Fourth Proportional to 214,961.96, 296,368.58 and 138,344.06
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Solution
The fourth proportional to 214,961.96, 296,368.58 and 138,344.06 is: 190,735.29
Step by Step Solution
- Step 1: Write the proportion equation
214,961.96 : 296,368.58 = 138,344.06 : x - Step 2: Convert to fraction form
214,961.96/296,368.58 = 138,344.06/x - Step 3: Cross multiply
214,961.96x = 296,368.58 × 138,344.06 - Step 4: Simplify right side
214,961.96x = 41,000,832,613.63 - Step 5: Solve for x
x = 41,000,832,613.63/214,961.96 - Step 6: Final answer
x = 190,735.29
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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.