Finding the Fourth Proportional to 217,101.40, 325,652.10 and 154,115.80
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Solution
The fourth proportional to 217,101.40, 325,652.10 and 154,115.80 is: 231,173.70
Step by Step Solution
- Step 1: Write the proportion equation
217,101.40 : 325,652.10 = 154,115.80 : x - Step 2: Convert to fraction form
217,101.40/325,652.10 = 154,115.80/x - Step 3: Cross multiply
217,101.40x = 325,652.10 × 154,115.80 - Step 4: Simplify right side
217,101.40x = 50,188,133,913.18 - Step 5: Solve for x
x = 50,188,133,913.18/217,101.40 - Step 6: Final answer
x = 231,173.70
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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.