Finding the Fourth Proportional to 247,221.70, 370,832.55 and 220,977.70
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Solution
The fourth proportional to 247,221.70, 370,832.55 and 220,977.70 is: 331,466.55
Step by Step Solution
- Step 1: Write the proportion equation
247,221.70 : 370,832.55 = 220,977.70 : x - Step 2: Convert to fraction form
247,221.70/370,832.55 = 220,977.70/x - Step 3: Cross multiply
247,221.70x = 370,832.55 × 220,977.70 - Step 4: Simplify right side
247,221.70x = 81,945,723,984.14 - Step 5: Solve for x
x = 81,945,723,984.14/247,221.70 - Step 6: Final answer
x = 331,466.55
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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.