Finding the Fourth Proportional to 278,473.26, 384,201.63 and 157,602.54
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Solution
The fourth proportional to 278,473.26, 384,201.63 and 157,602.54 is: 217,439.74
Step by Step Solution
- Step 1: Write the proportion equation
278,473.26 : 384,201.63 = 157,602.54 : x - Step 2: Convert to fraction form
278,473.26/384,201.63 = 157,602.54/x - Step 3: Cross multiply
278,473.26x = 384,201.63 × 157,602.54 - Step 4: Simplify right side
278,473.26x = 60,551,152,760.14 - Step 5: Solve for x
x = 60,551,152,760.14/278,473.26 - Step 6: Final answer
x = 217,439.74
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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.