Finding the Fourth Proportional to 278,450.28, 384,260.63 and 151,126.38
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Solution
The fourth proportional to 278,450.28, 384,260.63 and 151,126.38 is: 208,553.99
Step by Step Solution
- Step 1: Write the proportion equation
278,450.28 : 384,260.63 = 151,126.38 : x - Step 2: Convert to fraction form
278,450.28/384,260.63 = 151,126.38/x - Step 3: Cross multiply
278,450.28x = 384,260.63 × 151,126.38 - Step 4: Simplify right side
278,450.28x = 58,071,917,232.79 - Step 5: Solve for x
x = 58,071,917,232.79/278,450.28 - Step 6: Final answer
x = 208,553.99
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.