Finding the Fourth Proportional to 252,032.12, 378,122.06 and 74,543.88
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Solution
The fourth proportional to 252,032.12, 378,122.06 and 74,543.88 is: 111,837.67
Step by Step Solution
- Step 1: Write the proportion equation
252,032.12 : 378,122.06 = 74,543.88 : x - Step 2: Convert to fraction form
252,032.12/378,122.06 = 74,543.88/x - Step 3: Cross multiply
252,032.12x = 378,122.06 × 74,543.88 - Step 4: Simplify right side
252,032.12x = 28,186,685,465.99 - Step 5: Solve for x
x = 28,186,685,465.99/252,032.12 - Step 6: Final answer
x = 111,837.67
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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.