Finding the Fourth Proportional to 243,474.05, 335,987.75 and 136,044.97
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Solution
The fourth proportional to 243,474.05, 335,987.75 and 136,044.97 is: 187,738.45
Step by Step Solution
- Step 1: Write the proportion equation
243,474.05 : 335,987.75 = 136,044.97 : x - Step 2: Convert to fraction form
243,474.05/335,987.75 = 136,044.97/x - Step 3: Cross multiply
243,474.05x = 335,987.75 × 136,044.97 - Step 4: Simplify right side
243,474.05x = 45,709,442,104.01 - Step 5: Solve for x
x = 45,709,442,104.01/243,474.05 - Step 6: Final answer
x = 187,738.45
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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.