Finding the Fourth Proportional to 199,133.80, 298,700.70 and 125,405.80
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Solution
The fourth proportional to 199,133.80, 298,700.70 and 125,405.80 is: 188,108.70
Step by Step Solution
- Step 1: Write the proportion equation
199,133.80 : 298,700.70 = 125,405.80 : x - Step 2: Convert to fraction form
199,133.80/298,700.70 = 125,405.80/x - Step 3: Cross multiply
199,133.80x = 298,700.70 × 125,405.80 - Step 4: Simplify right side
199,133.80x = 37,458,800,244.06 - Step 5: Solve for x
x = 37,458,800,244.06/199,133.80 - Step 6: Final answer
x = 188,108.70
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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.