Finding the Fourth Proportional to 198,769.58, 298,041.06 and 135,666.09
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Solution
The fourth proportional to 198,769.58, 298,041.06 and 135,666.09 is: 203,421.80
Step by Step Solution
- Step 1: Write the proportion equation
198,769.58 : 298,041.06 = 135,666.09 : x - Step 2: Convert to fraction form
198,769.58/298,041.06 = 135,666.09/x - Step 3: Cross multiply
198,769.58x = 298,041.06 × 135,666.09 - Step 4: Simplify right side
198,769.58x = 40,434,065,269.66 - Step 5: Solve for x
x = 40,434,065,269.66/198,769.58 - Step 6: Final answer
x = 203,421.80
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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.