Finding the Fourth Proportional to 186,853.24, 258,138.30 and 122,475.28
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Solution
The fourth proportional to 186,853.24, 258,138.30 and 122,475.28 is: 169,199.96
Step by Step Solution
- Step 1: Write the proportion equation
186,853.24 : 258,138.30 = 122,475.28 : x - Step 2: Convert to fraction form
186,853.24/258,138.30 = 122,475.28/x - Step 3: Cross multiply
186,853.24x = 258,138.30 × 122,475.28 - Step 4: Simplify right side
186,853.24x = 31,615,560,571.22 - Step 5: Solve for x
x = 31,615,560,571.22/186,853.24 - Step 6: Final answer
x = 169,199.96
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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.