Finding the Fourth Proportional to 226,634.60, 312,749.21 and 124,660.05
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Solution
The fourth proportional to 226,634.60, 312,749.21 and 124,660.05 is: 172,027.28
Step by Step Solution
- Step 1: Write the proportion equation
226,634.60 : 312,749.21 = 124,660.05 : x - Step 2: Convert to fraction form
226,634.60/312,749.21 = 124,660.05/x - Step 3: Cross multiply
226,634.60x = 312,749.21 × 124,660.05 - Step 4: Simplify right side
226,634.60x = 38,987,332,467.71 - Step 5: Solve for x
x = 38,987,332,467.71/226,634.60 - Step 6: Final answer
x = 172,027.28
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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.