Finding the Fourth Proportional to 302,557.40, 453,398.70 and 133,939.70
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Solution
The fourth proportional to 302,557.40, 453,398.70 and 133,939.70 is: 200,715.92
Step by Step Solution
- Step 1: Write the proportion equation
302,557.40 : 453,398.70 = 133,939.70 : x - Step 2: Convert to fraction form
302,557.40/453,398.70 = 133,939.70/x - Step 3: Cross multiply
302,557.40x = 453,398.70 × 133,939.70 - Step 4: Simplify right side
302,557.40x = 60,728,085,858.39 - Step 5: Solve for x
x = 60,728,085,858.39/302,557.40 - Step 6: Final answer
x = 200,715.92
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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.