Finding the Fourth Proportional to 217,161.22, 299,699.09 and 136,657.75
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Solution
The fourth proportional to 217,161.22, 299,699.09 and 136,657.75 is: 188,598.14
Step by Step Solution
- Step 1: Write the proportion equation
217,161.22 : 299,699.09 = 136,657.75 : x - Step 2: Convert to fraction form
217,161.22/299,699.09 = 136,657.75/x - Step 3: Cross multiply
217,161.22x = 299,699.09 × 136,657.75 - Step 4: Simplify right side
217,161.22x = 40,956,202,633.16 - Step 5: Solve for x
x = 40,956,202,633.16/217,161.22 - Step 6: Final answer
x = 188,598.14
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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.