Finding the Fourth Proportional to 155,944.25, 215,202.91 and 84,324.10
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Solution
The fourth proportional to 155,944.25, 215,202.91 and 84,324.10 is: 116,367.17
Step by Step Solution
- Step 1: Write the proportion equation
155,944.25 : 215,202.91 = 84,324.10 : x - Step 2: Convert to fraction form
155,944.25/215,202.91 = 84,324.10/x - Step 3: Cross multiply
155,944.25x = 215,202.91 × 84,324.10 - Step 4: Simplify right side
155,944.25x = 18,146,791,703.13 - Step 5: Solve for x
x = 18,146,791,703.13/155,944.25 - Step 6: Final answer
x = 116,367.17
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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.