Finding the Fourth Proportional to 257,258.97, 386,027.87 and 107,512.43
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Solution
The fourth proportional to 257,258.97, 386,027.87 and 107,512.43 is: 161,326.90
Step by Step Solution
- Step 1: Write the proportion equation
257,258.97 : 386,027.87 = 107,512.43 : x - Step 2: Convert to fraction form
257,258.97/386,027.87 = 107,512.43/x - Step 3: Cross multiply
257,258.97x = 386,027.87 × 107,512.43 - Step 4: Simplify right side
257,258.97x = 41,502,791,883.72 - Step 5: Solve for x
x = 41,502,791,883.72/257,258.97 - Step 6: Final answer
x = 161,326.90
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.