Finding the Fourth Proportional to 505,181.76, 697,140.18 and 275,731.44
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Solution
The fourth proportional to 505,181.76, 697,140.18 and 275,731.44 is: 380,503.58
Step by Step Solution
- Step 1: Write the proportion equation
505,181.76 : 697,140.18 = 275,731.44 : x - Step 2: Convert to fraction form
505,181.76/697,140.18 = 275,731.44/x - Step 3: Cross multiply
505,181.76x = 697,140.18 × 275,731.44 - Step 4: Simplify right side
505,181.76x = 192,223,465,713.26 - Step 5: Solve for x
x = 192,223,465,713.26/505,181.76 - Step 6: Final answer
x = 380,503.58
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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.