Finding the Fourth Proportional to 242,902.19, 335,205.61 and 135,479.18
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Solution
The fourth proportional to 242,902.19, 335,205.61 and 135,479.18 is: 186,961.60
Step by Step Solution
- Step 1: Write the proportion equation
242,902.19 : 335,205.61 = 135,479.18 : x - Step 2: Convert to fraction form
242,902.19/335,205.61 = 135,479.18/x - Step 3: Cross multiply
242,902.19x = 335,205.61 × 135,479.18 - Step 4: Simplify right side
242,902.19x = 45,413,381,673.52 - Step 5: Solve for x
x = 45,413,381,673.52/242,902.19 - Step 6: Final answer
x = 186,961.60
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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.