Finding the Fourth Proportional to 197,976.23, 273,186.75 and 121,498.55
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Solution
The fourth proportional to 197,976.23, 273,186.75 and 121,498.55 is: 167,655.45
Step by Step Solution
- Step 1: Write the proportion equation
197,976.23 : 273,186.75 = 121,498.55 : x - Step 2: Convert to fraction form
197,976.23/273,186.75 = 121,498.55/x - Step 3: Cross multiply
197,976.23x = 273,186.75 × 121,498.55 - Step 4: Simplify right side
197,976.23x = 33,191,794,004.21 - Step 5: Solve for x
x = 33,191,794,004.21/197,976.23 - Step 6: Final answer
x = 167,655.45
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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.