Finding the Fourth Proportional to 170,417.40, 255,626.10 and 107,431.80
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Solution
The fourth proportional to 170,417.40, 255,626.10 and 107,431.80 is: 161,147.70
Step by Step Solution
- Step 1: Write the proportion equation
170,417.40 : 255,626.10 = 107,431.80 : x - Step 2: Convert to fraction form
170,417.40/255,626.10 = 107,431.80/x - Step 3: Cross multiply
170,417.40x = 255,626.10 × 107,431.80 - Step 4: Simplify right side
170,417.40x = 27,462,372,049.98 - Step 5: Solve for x
x = 27,462,372,049.98/170,417.40 - Step 6: Final answer
x = 161,147.70
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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.