Finding the Fourth Proportional to 256,138.10, 384,171.05 and 161,078.52
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Solution
The fourth proportional to 256,138.10, 384,171.05 and 161,078.52 is: 241,595.09
Step by Step Solution
- Step 1: Write the proportion equation
256,138.10 : 384,171.05 = 161,078.52 : x - Step 2: Convert to fraction form
256,138.10/384,171.05 = 161,078.52/x - Step 3: Cross multiply
256,138.10x = 384,171.05 × 161,078.52 - Step 4: Simplify right side
256,138.10x = 61,881,706,004.18 - Step 5: Solve for x
x = 61,881,706,004.18/256,138.10 - Step 6: Final answer
x = 241,595.09
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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.