Finding the Fourth Proportional to 209,989.80, 314,984.70 and 201,241.80
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Solution
The fourth proportional to 209,989.80, 314,984.70 and 201,241.80 is: 301,862.70
Step by Step Solution
- Step 1: Write the proportion equation
209,989.80 : 314,984.70 = 201,241.80 : x - Step 2: Convert to fraction form
209,989.80/314,984.70 = 201,241.80/x - Step 3: Cross multiply
209,989.80x = 314,984.70 × 201,241.80 - Step 4: Simplify right side
209,989.80x = 63,388,088,000.46 - Step 5: Solve for x
x = 63,388,088,000.46/209,989.80 - Step 6: Final answer
x = 301,862.70
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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.