Finding the Fourth Proportional to 201,639.40, 302,459.10 and 68,669.80
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Solution
The fourth proportional to 201,639.40, 302,459.10 and 68,669.80 is: 103,004.70
Step by Step Solution
- Step 1: Write the proportion equation
201,639.40 : 302,459.10 = 68,669.80 : x - Step 2: Convert to fraction form
201,639.40/302,459.10 = 68,669.80/x - Step 3: Cross multiply
201,639.40x = 302,459.10 × 68,669.80 - Step 4: Simplify right side
201,639.40x = 20,769,805,905.18 - Step 5: Solve for x
x = 20,769,805,905.18/201,639.40 - Step 6: Final answer
x = 103,004.70
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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.