Finding the Fourth Proportional to 218,409.21, 327,272.91 and 138,277.53
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Solution
The fourth proportional to 218,409.21, 327,272.91 and 138,277.53 is: 207,200.46
Step by Step Solution
- Step 1: Write the proportion equation
218,409.21 : 327,272.91 = 138,277.53 : x - Step 2: Convert to fraction form
218,409.21/327,272.91 = 138,277.53/x - Step 3: Cross multiply
218,409.21x = 327,272.91 × 138,277.53 - Step 4: Simplify right side
218,409.21x = 45,254,489,630.71 - Step 5: Solve for x
x = 45,254,489,630.71/218,409.21 - Step 6: Final answer
x = 207,200.46
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.