Finding the Fourth Proportional to 211,043.19, 291,228.06 and 115,531.41
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Solution
The fourth proportional to 211,043.19, 291,228.06 and 115,531.41 is: 159,427.03
Step by Step Solution
- Step 1: Write the proportion equation
211,043.19 : 291,228.06 = 115,531.41 : x - Step 2: Convert to fraction form
211,043.19/291,228.06 = 115,531.41/x - Step 3: Cross multiply
211,043.19x = 291,228.06 × 115,531.41 - Step 4: Simplify right side
211,043.19x = 33,645,988,403.36 - Step 5: Solve for x
x = 33,645,988,403.36/211,043.19 - Step 6: Final answer
x = 159,427.03
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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.