Finding the Fourth Proportional to 385,189.57, 577,311.12 and 216,354.99
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Solution
The fourth proportional to 385,189.57, 577,311.12 and 216,354.99 is: 324,266.67
Step by Step Solution
- Step 1: Write the proportion equation
385,189.57 : 577,311.12 = 216,354.99 : x - Step 2: Convert to fraction form
385,189.57/577,311.12 = 216,354.99/x - Step 3: Cross multiply
385,189.57x = 577,311.12 × 216,354.99 - Step 4: Simplify right side
385,189.57x = 124,904,140,512.71 - Step 5: Solve for x
x = 124,904,140,512.71/385,189.57 - Step 6: Final answer
x = 324,266.67
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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.