Finding the Fourth Proportional to 189,265.53, 261,120.48 and 121,319.97
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Solution
The fourth proportional to 189,265.53, 261,120.48 and 121,319.97 is: 167,379.28
Step by Step Solution
- Step 1: Write the proportion equation
189,265.53 : 261,120.48 = 121,319.97 : x - Step 2: Convert to fraction form
189,265.53/261,120.48 = 121,319.97/x - Step 3: Cross multiply
189,265.53x = 261,120.48 × 121,319.97 - Step 4: Simplify right side
189,265.53x = 31,679,128,100.24 - Step 5: Solve for x
x = 31,679,128,100.24/189,265.53 - Step 6: Final answer
x = 167,379.28
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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.