Finding the Fourth Proportional to 191,742.08, 287,415.84 and 73,381.44
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Solution
The fourth proportional to 191,742.08, 287,415.84 and 73,381.44 is: 109,996.66
Step by Step Solution
- Step 1: Write the proportion equation
191,742.08 : 287,415.84 = 73,381.44 : x - Step 2: Convert to fraction form
191,742.08/287,415.84 = 73,381.44/x - Step 3: Cross multiply
191,742.08x = 287,415.84 × 73,381.44 - Step 4: Simplify right side
191,742.08x = 21,090,988,218.01 - Step 5: Solve for x
x = 21,090,988,218.01/191,742.08 - Step 6: Final answer
x = 109,996.66
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.