Finding the Fourth Proportional to 211,036.09, 291,218.74 and 115,524.49
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Solution
The fourth proportional to 211,036.09, 291,218.74 and 115,524.49 is: 159,417.74
Step by Step Solution
- Step 1: Write the proportion equation
211,036.09 : 291,218.74 = 115,524.49 : x - Step 2: Convert to fraction form
211,036.09/291,218.74 = 115,524.49/x - Step 3: Cross multiply
211,036.09x = 291,218.74 × 115,524.49 - Step 4: Simplify right side
211,036.09x = 33,642,896,416.94 - Step 5: Solve for x
x = 33,642,896,416.94/211,036.09 - Step 6: Final answer
x = 159,417.74
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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.