Finding the Fourth Proportional to 331,720.40, 497,645.40 and 132,006.80
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Solution
The fourth proportional to 331,720.40, 497,645.40 and 132,006.80 is: 198,035.99
Step by Step Solution
- Step 1: Write the proportion equation
331,720.40 : 497,645.40 = 132,006.80 : x - Step 2: Convert to fraction form
331,720.40/497,645.40 = 132,006.80/x - Step 3: Cross multiply
331,720.40x = 497,645.40 × 132,006.80 - Step 4: Simplify right side
331,720.40x = 65,692,576,788.72 - Step 5: Solve for x
x = 65,692,576,788.72/331,720.40 - Step 6: Final answer
x = 198,035.99
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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.