Finding the Fourth Proportional to 511,623.99, 767,107.89 and 212,311.17
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Solution
The fourth proportional to 511,623.99, 767,107.89 and 212,311.17 is: 318,330.60
Step by Step Solution
- Step 1: Write the proportion equation
511,623.99 : 767,107.89 = 212,311.17 : x - Step 2: Convert to fraction form
511,623.99/767,107.89 = 212,311.17/x - Step 3: Cross multiply
511,623.99x = 767,107.89 × 212,311.17 - Step 4: Simplify right side
511,623.99x = 162,865,573,642.13 - Step 5: Solve for x
x = 162,865,573,642.13/511,623.99 - Step 6: Final answer
x = 318,330.60
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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.