Finding the Fourth Proportional to 252,165.21, 378,248.09 and 145,711.23
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Solution
The fourth proportional to 252,165.21, 378,248.09 and 145,711.23 is: 218,567.00
Step by Step Solution
- Step 1: Write the proportion equation
252,165.21 : 378,248.09 = 145,711.23 : x - Step 2: Convert to fraction form
252,165.21/378,248.09 = 145,711.23/x - Step 3: Cross multiply
252,165.21x = 378,248.09 × 145,711.23 - Step 4: Simplify right side
252,165.21x = 55,114,993,710.49 - Step 5: Solve for x
x = 55,114,993,710.49/252,165.21 - Step 6: Final answer
x = 218,567.00
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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.