Finding the Fourth Proportional to 135,246.20, 202,869.30 and 129,487.10
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Solution
The fourth proportional to 135,246.20, 202,869.30 and 129,487.10 is: 194,230.65
Step by Step Solution
- Step 1: Write the proportion equation
135,246.20 : 202,869.30 = 129,487.10 : x - Step 2: Convert to fraction form
135,246.20/202,869.30 = 129,487.10/x - Step 3: Cross multiply
135,246.20x = 202,869.30 × 129,487.10 - Step 4: Simplify right side
135,246.20x = 26,268,957,336.03 - Step 5: Solve for x
x = 26,268,957,336.03/135,246.20 - Step 6: Final answer
x = 194,230.65
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1.5x scale
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.