Finding the Fourth Proportional to 211,026.93, 291,190.05 and 120,377.49
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Solution
The fourth proportional to 211,026.93, 291,190.05 and 120,377.49 is: 166,105.47
Step by Step Solution
- Step 1: Write the proportion equation
211,026.93 : 291,190.05 = 120,377.49 : x - Step 2: Convert to fraction form
211,026.93/291,190.05 = 120,377.49/x - Step 3: Cross multiply
211,026.93x = 291,190.05 × 120,377.49 - Step 4: Simplify right side
211,026.93x = 35,052,728,047.24 - Step 5: Solve for x
x = 35,052,728,047.24/211,026.93 - Step 6: Final answer
x = 166,105.47
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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.