Finding the Fourth Proportional to 230,489.97, 318,059.92 and 128,511.08
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Solution
The fourth proportional to 230,489.97, 318,059.92 and 128,511.08 is: 177,336.23
Step by Step Solution
- Step 1: Write the proportion equation
230,489.97 : 318,059.92 = 128,511.08 : x - Step 2: Convert to fraction form
230,489.97/318,059.92 = 128,511.08/x - Step 3: Cross multiply
230,489.97x = 318,059.92 × 128,511.08 - Step 4: Simplify right side
230,489.97x = 40,874,221,591.06 - Step 5: Solve for x
x = 40,874,221,591.06/230,489.97 - Step 6: Final answer
x = 177,336.23
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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.