Finding the Fourth Proportional to 211,035.09, 291,217.36 and 115,523.49
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Solution
The fourth proportional to 211,035.09, 291,217.36 and 115,523.49 is: 159,416.36
Step by Step Solution
- Step 1: Write the proportion equation
211,035.09 : 291,217.36 = 115,523.49 : x - Step 2: Convert to fraction form
211,035.09/291,217.36 = 115,523.49/x - Step 3: Cross multiply
211,035.09x = 291,217.36 × 115,523.49 - Step 4: Simplify right side
211,035.09x = 33,642,445,775.79 - Step 5: Solve for x
x = 33,642,445,775.79/211,035.09 - Step 6: Final answer
x = 159,416.36
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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.