Finding the Fourth Proportional to 211,380.69, 291,705.33 and 115,888.05
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Solution
The fourth proportional to 211,380.69, 291,705.33 and 115,888.05 is: 159,925.50
Step by Step Solution
- Step 1: Write the proportion equation
211,380.69 : 291,705.33 = 115,888.05 : x - Step 2: Convert to fraction form
211,380.69/291,705.33 = 115,888.05/x - Step 3: Cross multiply
211,380.69x = 291,705.33 × 115,888.05 - Step 4: Simplify right side
211,380.69x = 33,805,161,868.31 - Step 5: Solve for x
x = 33,805,161,868.31/211,380.69 - Step 6: Final answer
x = 159,925.50
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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.