Finding the Fourth Proportional to 275,406.44, 412,777.49 and 142,214.09
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Solution
The fourth proportional to 275,406.44, 412,777.49 and 142,214.09 is: 213,149.60
Step by Step Solution
- Step 1: Write the proportion equation
275,406.44 : 412,777.49 = 142,214.09 : x - Step 2: Convert to fraction form
275,406.44/412,777.49 = 142,214.09/x - Step 3: Cross multiply
275,406.44x = 412,777.49 × 142,214.09 - Step 4: Simplify right side
275,406.44x = 58,702,772,337.88 - Step 5: Solve for x
x = 58,702,772,337.88/275,406.44 - Step 6: Final answer
x = 213,149.60
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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.