Finding the Fourth Proportional to 246,291.30, 339,877.16 and 138,859.18
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Solution
The fourth proportional to 246,291.30, 339,877.16 and 138,859.18 is: 191,622.94
Step by Step Solution
- Step 1: Write the proportion equation
246,291.30 : 339,877.16 = 138,859.18 : x - Step 2: Convert to fraction form
246,291.30/339,877.16 = 138,859.18/x - Step 3: Cross multiply
246,291.30x = 339,877.16 × 138,859.18 - Step 4: Simplify right side
246,291.30x = 47,195,063,738.33 - Step 5: Solve for x
x = 47,195,063,738.33/246,291.30 - Step 6: Final answer
x = 191,622.94
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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.