Finding the Fourth Proportional to 378,201.70, 567,302.55 and 128,883.70
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Solution
The fourth proportional to 378,201.70, 567,302.55 and 128,883.70 is: 193,325.55
Step by Step Solution
- Step 1: Write the proportion equation
378,201.70 : 567,302.55 = 128,883.70 : x - Step 2: Convert to fraction form
378,201.70/567,302.55 = 128,883.70/x - Step 3: Cross multiply
378,201.70x = 567,302.55 × 128,883.70 - Step 4: Simplify right side
378,201.70x = 73,116,051,663.44 - Step 5: Solve for x
x = 73,116,051,663.44/378,201.70 - Step 6: Final answer
x = 193,325.55
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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.