Finding the Fourth Proportional to 211,121.68, 291,337.08 and 115,609.90
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Solution
The fourth proportional to 211,121.68, 291,337.08 and 115,609.90 is: 159,535.73
Step by Step Solution
- Step 1: Write the proportion equation
211,121.68 : 291,337.08 = 115,609.90 : x - Step 2: Convert to fraction form
211,121.68/291,337.08 = 115,609.90/x - Step 3: Cross multiply
211,121.68x = 291,337.08 × 115,609.90 - Step 4: Simplify right side
211,121.68x = 33,681,450,685.09 - Step 5: Solve for x
x = 33,681,450,685.09/211,121.68 - Step 6: Final answer
x = 159,535.73
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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.