Finding the Fourth Proportional to 198,432.27, 273,678.21 and 130,518.99
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Solution
The fourth proportional to 198,432.27, 273,678.21 and 130,518.99 is: 180,012.07
Step by Step Solution
- Step 1: Write the proportion equation
198,432.27 : 273,678.21 = 130,518.99 : x - Step 2: Convert to fraction form
198,432.27/273,678.21 = 130,518.99/x - Step 3: Cross multiply
198,432.27x = 273,678.21 × 130,518.99 - Step 4: Simplify right side
198,432.27x = 35,720,203,554.21 - Step 5: Solve for x
x = 35,720,203,554.21/198,432.27 - Step 6: Final answer
x = 180,012.07
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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.