Finding the Fourth Proportional to 212,509.44, 318,703.68 and 72,264.96
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Solution
The fourth proportional to 212,509.44, 318,703.68 and 72,264.96 is: 108,376.87
Step by Step Solution
- Step 1: Write the proportion equation
212,509.44 : 318,703.68 = 72,264.96 : x - Step 2: Convert to fraction form
212,509.44/318,703.68 = 72,264.96/x - Step 3: Cross multiply
212,509.44x = 318,703.68 × 72,264.96 - Step 4: Simplify right side
212,509.44x = 23,031,108,687.05 - Step 5: Solve for x
x = 23,031,108,687.05/212,509.44 - Step 6: Final answer
x = 108,376.87
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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.