Finding the Fourth Proportional to 211,276.23, 291,563.49 and 115,780.88
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Solution
The fourth proportional to 211,276.23, 291,563.49 and 115,780.88 is: 159,778.87
Step by Step Solution
- Step 1: Write the proportion equation
211,276.23 : 291,563.49 = 115,780.88 : x - Step 2: Convert to fraction form
211,276.23/291,563.49 = 115,780.88/x - Step 3: Cross multiply
211,276.23x = 291,563.49 × 115,780.88 - Step 4: Simplify right side
211,276.23x = 33,757,477,448.07 - Step 5: Solve for x
x = 33,757,477,448.07/211,276.23 - Step 6: Final answer
x = 159,778.87
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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.