Finding the Fourth Proportional to 371,742.80, 557,614.20 and 135,093.20
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Solution
The fourth proportional to 371,742.80, 557,614.20 and 135,093.20 is: 202,639.80
Step by Step Solution
- Step 1: Write the proportion equation
371,742.80 : 557,614.20 = 135,093.20 : x - Step 2: Convert to fraction form
371,742.80/557,614.20 = 135,093.20/x - Step 3: Cross multiply
371,742.80x = 557,614.20 × 135,093.20 - Step 4: Simplify right side
371,742.80x = 75,329,886,643.44 - Step 5: Solve for x
x = 75,329,886,643.44/371,742.80 - Step 6: Final answer
x = 202,639.80
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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.