Finding the Fourth Proportional to 201,893.24, 278,622.06 and 117,036.92
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Solution
The fourth proportional to 201,893.24, 278,622.06 and 117,036.92 is: 161,516.39
Step by Step Solution
- Step 1: Write the proportion equation
201,893.24 : 278,622.06 = 117,036.92 : x - Step 2: Convert to fraction form
201,893.24/278,622.06 = 117,036.92/x - Step 3: Cross multiply
201,893.24x = 278,622.06 × 117,036.92 - Step 4: Simplify right side
201,893.24x = 32,609,067,746.46 - Step 5: Solve for x
x = 32,609,067,746.46/201,893.24 - Step 6: Final answer
x = 161,516.39
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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.