Finding the Fourth Proportional to 199,128.84, 274,797.72 and 109,704.84
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Solution
The fourth proportional to 199,128.84, 274,797.72 and 109,704.84 is: 151,392.64
Step by Step Solution
- Step 1: Write the proportion equation
199,128.84 : 274,797.72 = 109,704.84 : x - Step 2: Convert to fraction form
199,128.84/274,797.72 = 109,704.84/x - Step 3: Cross multiply
199,128.84x = 274,797.72 × 109,704.84 - Step 4: Simplify right side
199,128.84x = 30,146,639,904.96 - Step 5: Solve for x
x = 30,146,639,904.96/199,128.84 - Step 6: Final answer
x = 151,392.64
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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.