Finding the Fourth Proportional to 199,124.20, 298,686.30 and 120,197.80
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Solution
The fourth proportional to 199,124.20, 298,686.30 and 120,197.80 is: 180,296.70
Step by Step Solution
- Step 1: Write the proportion equation
199,124.20 : 298,686.30 = 120,197.80 : x - Step 2: Convert to fraction form
199,124.20/298,686.30 = 120,197.80/x - Step 3: Cross multiply
199,124.20x = 298,686.30 × 120,197.80 - Step 4: Simplify right side
199,124.20x = 35,901,436,150.14 - Step 5: Solve for x
x = 35,901,436,150.14/199,124.20 - Step 6: Final answer
x = 180,296.70
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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.