Finding the Fourth Proportional to 210,998.44, 291,178.34 and 115,511.28
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Solution
The fourth proportional to 210,998.44, 291,178.34 and 115,511.28 is: 159,405.84
Step by Step Solution
- Step 1: Write the proportion equation
210,998.44 : 291,178.34 = 115,511.28 : x - Step 2: Convert to fraction form
210,998.44/291,178.34 = 115,511.28/x - Step 3: Cross multiply
210,998.44x = 291,178.34 × 115,511.28 - Step 4: Simplify right side
210,998.44x = 33,634,382,761.68 - Step 5: Solve for x
x = 33,634,382,761.68/210,998.44 - Step 6: Final answer
x = 159,405.84
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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.