Finding the Fourth Proportional to 227,138.61, 313,465.18 and 125,164.09
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Solution
The fourth proportional to 227,138.61, 313,465.18 and 125,164.09 is: 172,734.10
Step by Step Solution
- Step 1: Write the proportion equation
227,138.61 : 313,465.18 = 125,164.09 : x - Step 2: Convert to fraction form
227,138.61/313,465.18 = 125,164.09/x - Step 3: Cross multiply
227,138.61x = 313,465.18 × 125,164.09 - Step 4: Simplify right side
227,138.61x = 39,234,584,001.39 - Step 5: Solve for x
x = 39,234,584,001.39/227,138.61 - Step 6: Final answer
x = 172,734.10
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1.5x scale
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.