Finding the Fourth Proportional to 189,219.19, 283,828.79 and 129,874.95
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Solution
The fourth proportional to 189,219.19, 283,828.79 and 129,874.95 is: 194,812.42
Step by Step Solution
- Step 1: Write the proportion equation
189,219.19 : 283,828.79 = 129,874.95 : x - Step 2: Convert to fraction form
189,219.19/283,828.79 = 129,874.95/x - Step 3: Cross multiply
189,219.19x = 283,828.79 × 129,874.95 - Step 4: Simplify right side
189,219.19x = 36,862,248,358.42 - Step 5: Solve for x
x = 36,862,248,358.42/189,219.19 - Step 6: Final answer
x = 194,812.42
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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.