Finding the Fourth Proportional to 387,744.30, 581,709.24 and 187,830.99
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Solution
The fourth proportional to 387,744.30, 581,709.24 and 187,830.99 is: 281,791.43
Step by Step Solution
- Step 1: Write the proportion equation
387,744.30 : 581,709.24 = 187,830.99 : x - Step 2: Convert to fraction form
387,744.30/581,709.24 = 187,830.99/x - Step 3: Cross multiply
387,744.30x = 581,709.24 × 187,830.99 - Step 4: Simplify right side
387,744.30x = 109,263,022,441.35 - Step 5: Solve for x
x = 109,263,022,441.35/387,744.30 - Step 6: Final answer
x = 281,791.43
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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.