Finding the Fourth Proportional to 155,944.10, 215,202.70 and 84,323.94
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Solution
The fourth proportional to 155,944.10, 215,202.70 and 84,323.94 is: 116,366.95
Step by Step Solution
- Step 1: Write the proportion equation
155,944.10 : 215,202.70 = 84,323.94 : x - Step 2: Convert to fraction form
155,944.10/215,202.70 = 84,323.94/x - Step 3: Cross multiply
155,944.10x = 215,202.70 × 84,323.94 - Step 4: Simplify right side
155,944.10x = 18,146,739,562.64 - Step 5: Solve for x
x = 18,146,739,562.64/155,944.10 - Step 6: Final answer
x = 116,366.95
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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.