Finding the Fourth Proportional to 211,106.97, 291,317.27 and 115,614.09
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Solution
The fourth proportional to 211,106.97, 291,317.27 and 115,614.09 is: 159,541.77
Step by Step Solution
- Step 1: Write the proportion equation
211,106.97 : 291,317.27 = 115,614.09 : x - Step 2: Convert to fraction form
211,106.97/291,317.27 = 115,614.09/x - Step 3: Cross multiply
211,106.97x = 291,317.27 × 115,614.09 - Step 4: Simplify right side
211,106.97x = 33,680,380,494.26 - Step 5: Solve for x
x = 33,680,380,494.26/211,106.97 - Step 6: Final answer
x = 159,541.77
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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.