Finding the Fourth Proportional to 302,591.70, 453,887.55 and 80,975.70
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Solution
The fourth proportional to 302,591.70, 453,887.55 and 80,975.70 is: 121,463.55
Step by Step Solution
- Step 1: Write the proportion equation
302,591.70 : 453,887.55 = 80,975.70 : x - Step 2: Convert to fraction form
302,591.70/453,887.55 = 80,975.70/x - Step 3: Cross multiply
302,591.70x = 453,887.55 × 80,975.70 - Step 4: Simplify right side
302,591.70x = 36,753,862,082.54 - Step 5: Solve for x
x = 36,753,862,082.54/302,591.70 - Step 6: Final answer
x = 121,463.55
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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.