Finding the Fourth Proportional to 211,072.95, 291,269.84 and 115,561.19
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Solution
The fourth proportional to 211,072.95, 291,269.84 and 115,561.19 is: 159,468.50
Step by Step Solution
- Step 1: Write the proportion equation
211,072.95 : 291,269.84 = 115,561.19 : x - Step 2: Convert to fraction form
211,072.95/291,269.84 = 115,561.19/x - Step 3: Cross multiply
211,072.95x = 291,269.84 × 115,561.19 - Step 4: Simplify right side
211,072.95x = 33,659,487,287.35 - Step 5: Solve for x
x = 33,659,487,287.35/211,072.95 - Step 6: Final answer
x = 159,468.50
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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.