Finding the Fourth Proportional to 387,621.44, 581,519.90 and 134,913.84
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Solution
The fourth proportional to 387,621.44, 581,519.90 and 134,913.84 is: 202,401.30
Step by Step Solution
- Step 1: Write the proportion equation
387,621.44 : 581,519.90 = 134,913.84 : x - Step 2: Convert to fraction form
387,621.44/581,519.90 = 134,913.84/x - Step 3: Cross multiply
387,621.44x = 581,519.90 × 134,913.84 - Step 4: Simplify right side
387,621.44x = 78,455,082,745.42 - Step 5: Solve for x
x = 78,455,082,745.42/387,621.44 - Step 6: Final answer
x = 202,401.30
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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.