Finding the Fourth Proportional to 189,730.44, 261,882.72 and 125,246.88
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Solution
The fourth proportional to 189,730.44, 261,882.72 and 125,246.88 is: 172,876.81
Step by Step Solution
- Step 1: Write the proportion equation
189,730.44 : 261,882.72 = 125,246.88 : x - Step 2: Convert to fraction form
189,730.44/261,882.72 = 125,246.88/x - Step 3: Cross multiply
189,730.44x = 261,882.72 × 125,246.88 - Step 4: Simplify right side
189,730.44x = 32,799,993,605.91 - Step 5: Solve for x
x = 32,799,993,605.91/189,730.44 - Step 6: Final answer
x = 172,876.81
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.