Finding the Fourth Proportional to 217,028.40, 325,639.80 and 98,638.80
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Solution
The fourth proportional to 217,028.40, 325,639.80 and 98,638.80 is: 148,002.38
Step by Step Solution
- Step 1: Write the proportion equation
217,028.40 : 325,639.80 = 98,638.80 : x - Step 2: Convert to fraction form
217,028.40/325,639.80 = 98,638.80/x - Step 3: Cross multiply
217,028.40x = 325,639.80 × 98,638.80 - Step 4: Simplify right side
217,028.40x = 32,120,719,104.24 - Step 5: Solve for x
x = 32,120,719,104.24/217,028.40 - Step 6: Final answer
x = 148,002.38
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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.