Finding the Fourth Proportional to 209,915.80, 314,873.70 and 201,167.80
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Solution
The fourth proportional to 209,915.80, 314,873.70 and 201,167.80 is: 301,751.70
Step by Step Solution
- Step 1: Write the proportion equation
209,915.80 : 314,873.70 = 201,167.80 : x - Step 2: Convert to fraction form
209,915.80/314,873.70 = 201,167.80/x - Step 3: Cross multiply
209,915.80x = 314,873.70 × 201,167.80 - Step 4: Simplify right side
209,915.80x = 63,342,449,506.86 - Step 5: Solve for x
x = 63,342,449,506.86/209,915.80 - Step 6: Final answer
x = 301,751.70
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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.