Finding the Fourth Proportional to 383,170.15, 528,791.12 and 213,404.28
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Solution
The fourth proportional to 383,170.15, 528,791.12 and 213,404.28 is: 294,506.99
Step by Step Solution
- Step 1: Write the proportion equation
383,170.15 : 528,791.12 = 213,404.28 : x - Step 2: Convert to fraction form
383,170.15/528,791.12 = 213,404.28/x - Step 3: Cross multiply
383,170.15x = 528,791.12 × 213,404.28 - Step 4: Simplify right side
383,170.15x = 112,846,288,233.99 - Step 5: Solve for x
x = 112,846,288,233.99/383,170.15 - Step 6: Final answer
x = 294,506.99
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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.