Finding the Fourth Proportional to 210,517.76, 290,708.52 and 135,197.48
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Solution
The fourth proportional to 210,517.76, 290,708.52 and 135,197.48 is: 186,697.12
Step by Step Solution
- Step 1: Write the proportion equation
210,517.76 : 290,708.52 = 135,197.48 : x - Step 2: Convert to fraction form
210,517.76/290,708.52 = 135,197.48/x - Step 3: Cross multiply
210,517.76x = 290,708.52 × 135,197.48 - Step 4: Simplify right side
210,517.76x = 39,303,059,318.53 - Step 5: Solve for x
x = 39,303,059,318.53/210,517.76 - Step 6: Final answer
x = 186,697.12
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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.