Finding the Fourth Proportional to 505,186.13, 697,107.23 and 278,817.05
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Solution
The fourth proportional to 505,186.13, 697,107.23 and 278,817.05 is: 384,740.14
Step by Step Solution
- Step 1: Write the proportion equation
505,186.13 : 697,107.23 = 278,817.05 : x - Step 2: Convert to fraction form
505,186.13/697,107.23 = 278,817.05/x - Step 3: Cross multiply
505,186.13x = 697,107.23 × 278,817.05 - Step 4: Simplify right side
505,186.13x = 194,365,380,008.19 - Step 5: Solve for x
x = 194,365,380,008.19/505,186.13 - Step 6: Final answer
x = 384,740.14
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.