Finding the Fourth Proportional to 201,719.40, 302,579.10 and 68,749.80
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Solution
The fourth proportional to 201,719.40, 302,579.10 and 68,749.80 is: 103,124.70
Step by Step Solution
- Step 1: Write the proportion equation
201,719.40 : 302,579.10 = 68,749.80 : x - Step 2: Convert to fraction form
201,719.40/302,579.10 = 68,749.80/x - Step 3: Cross multiply
201,719.40x = 302,579.10 × 68,749.80 - Step 4: Simplify right side
201,719.40x = 20,802,252,609.18 - Step 5: Solve for x
x = 20,802,252,609.18/201,719.40 - Step 6: Final answer
x = 103,124.70
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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.