Finding the Fourth Proportional to 317,472.84, 438,249.17 and 194,985.06
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Solution
The fourth proportional to 317,472.84, 438,249.17 and 194,985.06 is: 269,163.31
Step by Step Solution
- Step 1: Write the proportion equation
317,472.84 : 438,249.17 = 194,985.06 : x - Step 2: Convert to fraction form
317,472.84/438,249.17 = 194,985.06/x - Step 3: Cross multiply
317,472.84x = 438,249.17 × 194,985.06 - Step 4: Simplify right side
317,472.84x = 85,452,040,707.40 - Step 5: Solve for x
x = 85,452,040,707.40/317,472.84 - Step 6: Final answer
x = 269,163.31
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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.