Finding the Fourth Proportional to 197,585.97, 272,675.25 and 121,090.29
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Solution
The fourth proportional to 197,585.97, 272,675.25 and 121,090.29 is: 167,108.65
Step by Step Solution
- Step 1: Write the proportion equation
197,585.97 : 272,675.25 = 121,090.29 : x - Step 2: Convert to fraction form
197,585.97/272,675.25 = 121,090.29/x - Step 3: Cross multiply
197,585.97x = 272,675.25 × 121,090.29 - Step 4: Simplify right side
197,585.97x = 33,018,323,734.95 - Step 5: Solve for x
x = 33,018,323,734.95/197,585.97 - Step 6: Final answer
x = 167,108.65
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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.