Finding the Fourth Proportional to 247,316.80, 370,975.20 and 213,491.20
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Solution
The fourth proportional to 247,316.80, 370,975.20 and 213,491.20 is: 320,236.80
Step by Step Solution
- Step 1: Write the proportion equation
247,316.80 : 370,975.20 = 213,491.20 : x - Step 2: Convert to fraction form
247,316.80/370,975.20 = 213,491.20/x - Step 3: Cross multiply
247,316.80x = 370,975.20 × 213,491.20 - Step 4: Simplify right side
247,316.80x = 79,199,940,618.24 - Step 5: Solve for x
x = 79,199,940,618.24/247,316.80 - Step 6: Final answer
x = 320,236.80
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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.