Finding the Fourth Proportional to 280,858.49, 387,541.36 and 159,984.42
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Solution
The fourth proportional to 280,858.49, 387,541.36 and 159,984.42 is: 220,753.80
Step by Step Solution
- Step 1: Write the proportion equation
280,858.49 : 387,541.36 = 159,984.42 : x - Step 2: Convert to fraction form
280,858.49/387,541.36 = 159,984.42/x - Step 3: Cross multiply
280,858.49x = 387,541.36 × 159,984.42 - Step 4: Simplify right side
280,858.49x = 62,000,578,452.31 - Step 5: Solve for x
x = 62,000,578,452.31/280,858.49 - Step 6: Final answer
x = 220,753.80
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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.