Finding the Fourth Proportional to 431,073.99, 646,610.97 and 131,556.09
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Solution
The fourth proportional to 431,073.99, 646,610.97 and 131,556.09 is: 197,334.13
Step by Step Solution
- Step 1: Write the proportion equation
431,073.99 : 646,610.97 = 131,556.09 : x - Step 2: Convert to fraction form
431,073.99/646,610.97 = 131,556.09/x - Step 3: Cross multiply
431,073.99x = 646,610.97 × 131,556.09 - Step 4: Simplify right side
431,073.99x = 85,065,610,964.31 - Step 5: Solve for x
x = 85,065,610,964.31/431,073.99 - Step 6: Final answer
x = 197,334.13
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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.