Finding the Fourth Proportional to 425,023.20, 637,618.92 and 121,419.97
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Solution
The fourth proportional to 425,023.20, 637,618.92 and 121,419.97 is: 182,153.99
Step by Step Solution
- Step 1: Write the proportion equation
425,023.20 : 637,618.92 = 121,419.97 : x - Step 2: Convert to fraction form
425,023.20/637,618.92 = 121,419.97/x - Step 3: Cross multiply
425,023.20x = 637,618.92 × 121,419.97 - Step 4: Simplify right side
425,023.20x = 77,419,670,137.83 - Step 5: Solve for x
x = 77,419,670,137.83/425,023.20 - Step 6: Final answer
x = 182,153.99
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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.