Finding the Fourth Proportional to 355,874.41, 533,817.78 and 131,119.15
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Solution
The fourth proportional to 355,874.41, 533,817.78 and 131,119.15 is: 196,680.99
Step by Step Solution
- Step 1: Write the proportion equation
355,874.41 : 533,817.78 = 131,119.15 : x - Step 2: Convert to fraction form
355,874.41/533,817.78 = 131,119.15/x - Step 3: Cross multiply
355,874.41x = 533,817.78 × 131,119.15 - Step 4: Simplify right side
355,874.41x = 69,993,730,899.40 - Step 5: Solve for x
x = 69,993,730,899.40/355,874.41 - Step 6: Final answer
x = 196,680.99
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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.