Finding the Fourth Proportional to 486,648.70, 729,974.76 and 149,687.08
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Solution
The fourth proportional to 486,648.70, 729,974.76 and 149,687.08 is: 224,531.14
Step by Step Solution
- Step 1: Write the proportion equation
486,648.70 : 729,974.76 = 149,687.08 : x - Step 2: Convert to fraction form
486,648.70/729,974.76 = 149,687.08/x - Step 3: Cross multiply
486,648.70x = 729,974.76 × 149,687.08 - Step 4: Simplify right side
486,648.70x = 109,267,786,648.23 - Step 5: Solve for x
x = 109,267,786,648.23/486,648.70 - Step 6: Final answer
x = 224,531.14
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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.