Finding the Fourth Proportional to 242,879.86, 335,059.81 and 157,965.94
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Solution
The fourth proportional to 242,879.86, 335,059.81 and 157,965.94 is: 217,918.59
Step by Step Solution
- Step 1: Write the proportion equation
242,879.86 : 335,059.81 = 157,965.94 : x - Step 2: Convert to fraction form
242,879.86/335,059.81 = 157,965.94/x - Step 3: Cross multiply
242,879.86x = 335,059.81 × 157,965.94 - Step 4: Simplify right side
242,879.86x = 52,928,037,842.87 - Step 5: Solve for x
x = 52,928,037,842.87/242,879.86 - Step 6: Final answer
x = 217,918.59
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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.