Finding the Fourth Proportional to 213,456.07, 320,239.41 and 113,534.02
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Solution
The fourth proportional to 213,456.07, 320,239.41 and 113,534.02 is: 170,330.45
Step by Step Solution
- Step 1: Write the proportion equation
213,456.07 : 320,239.41 = 113,534.02 : x - Step 2: Convert to fraction form
213,456.07/320,239.41 = 113,534.02/x - Step 3: Cross multiply
213,456.07x = 320,239.41 × 113,534.02 - Step 4: Simplify right side
213,456.07x = 36,358,067,579.73 - Step 5: Solve for x
x = 36,358,067,579.73/213,456.07 - Step 6: Final answer
x = 170,330.45
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.