Finding the Fourth Proportional to 379,478.40, 569,873.70 and 202,331.40
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Solution
The fourth proportional to 379,478.40, 569,873.70 and 202,331.40 is: 303,846.92
Step by Step Solution
- Step 1: Write the proportion equation
379,478.40 : 569,873.70 = 202,331.40 : x - Step 2: Convert to fraction form
379,478.40/569,873.70 = 202,331.40/x - Step 3: Cross multiply
379,478.40x = 569,873.70 × 202,331.40 - Step 4: Simplify right side
379,478.40x = 115,303,343,544.18 - Step 5: Solve for x
x = 115,303,343,544.18/379,478.40 - Step 6: Final answer
x = 303,846.92
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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.