Finding the Fourth Proportional to 280,912.28, 387,563.99 and 159,967.81
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Solution
The fourth proportional to 280,912.28, 387,563.99 and 159,967.81 is: 220,701.50
Step by Step Solution
- Step 1: Write the proportion equation
280,912.28 : 387,563.99 = 159,967.81 : x - Step 2: Convert to fraction form
280,912.28/387,563.99 = 159,967.81/x - Step 3: Cross multiply
280,912.28x = 387,563.99 × 159,967.81 - Step 4: Simplify right side
280,912.28x = 61,997,762,146.17 - Step 5: Solve for x
x = 61,997,762,146.17/280,912.28 - Step 6: Final answer
x = 220,701.50
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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.