Finding the Fourth Proportional to 207,205.41, 310,902.45 and 100,531.79
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Solution
The fourth proportional to 207,205.41, 310,902.45 and 100,531.79 is: 150,843.45
Step by Step Solution
- Step 1: Write the proportion equation
207,205.41 : 310,902.45 = 100,531.79 : x - Step 2: Convert to fraction form
207,205.41/310,902.45 = 100,531.79/x - Step 3: Cross multiply
207,205.41x = 310,902.45 × 100,531.79 - Step 4: Simplify right side
207,205.41x = 31,255,579,813.89 - Step 5: Solve for x
x = 31,255,579,813.89/207,205.41 - Step 6: Final answer
x = 150,843.45
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1.5x scale
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.