Finding the Fourth Proportional to 211,153.56, 291,394.44 and 115,664.28
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Solution
The fourth proportional to 211,153.56, 291,394.44 and 115,664.28 is: 159,618.09
Step by Step Solution
- Step 1: Write the proportion equation
211,153.56 : 291,394.44 = 115,664.28 : x - Step 2: Convert to fraction form
211,153.56/291,394.44 = 115,664.28/x - Step 3: Cross multiply
211,153.56x = 291,394.44 × 115,664.28 - Step 4: Simplify right side
211,153.56x = 33,703,928,098.60 - Step 5: Solve for x
x = 33,703,928,098.60/211,153.56 - Step 6: Final answer
x = 159,618.09
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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.