Finding the Fourth Proportional to 211,382.29, 291,707.49 and 115,886.94
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Solution
The fourth proportional to 211,382.29, 291,707.49 and 115,886.94 is: 159,923.94
Step by Step Solution
- Step 1: Write the proportion equation
211,382.29 : 291,707.49 = 115,886.94 : x - Step 2: Convert to fraction form
211,382.29/291,707.49 = 115,886.94/x - Step 3: Cross multiply
211,382.29x = 291,707.49 × 115,886.94 - Step 4: Simplify right side
211,382.29x = 33,805,088,391.18 - Step 5: Solve for x
x = 33,805,088,391.18/211,382.29 - Step 6: Final answer
x = 159,923.94
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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.