Finding the Fourth Proportional to 157,592.24, 217,512.44 and 100,220.48
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Solution
The fourth proportional to 157,592.24, 217,512.44 and 100,220.48 is: 138,326.62
Step by Step Solution
- Step 1: Write the proportion equation
157,592.24 : 217,512.44 = 100,220.48 : x - Step 2: Convert to fraction form
157,592.24/217,512.44 = 100,220.48/x - Step 3: Cross multiply
157,592.24x = 217,512.44 × 100,220.48 - Step 4: Simplify right side
157,592.24x = 21,799,201,142.77 - Step 5: Solve for x
x = 21,799,201,142.77/157,592.24 - Step 6: Final answer
x = 138,326.62
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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.