Finding the Fourth Proportional to 505,721.25, 758,692.77 and 190,178.19
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Solution
The fourth proportional to 505,721.25, 758,692.77 and 190,178.19 is: 285,308.99
Step by Step Solution
- Step 1: Write the proportion equation
505,721.25 : 758,692.77 = 190,178.19 : x - Step 2: Convert to fraction form
505,721.25/758,692.77 = 190,178.19/x - Step 3: Cross multiply
505,721.25x = 758,692.77 × 190,178.19 - Step 4: Simplify right side
505,721.25x = 144,286,817,764.69 - Step 5: Solve for x
x = 144,286,817,764.69/505,721.25 - Step 6: Final answer
x = 285,308.99
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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.