Finding the Fourth Proportional to 211,135.68, 291,364.02 and 115,642.08
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Solution
The fourth proportional to 211,135.68, 291,364.02 and 115,642.08 is: 159,584.31
Step by Step Solution
- Step 1: Write the proportion equation
211,135.68 : 291,364.02 = 115,642.08 : x - Step 2: Convert to fraction form
211,135.68/291,364.02 = 115,642.08/x - Step 3: Cross multiply
211,135.68x = 291,364.02 × 115,642.08 - Step 4: Simplify right side
211,135.68x = 33,693,941,309.96 - Step 5: Solve for x
x = 33,693,941,309.96/211,135.68 - Step 6: Final answer
x = 159,584.31
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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.