Finding the Fourth Proportional to 287,537.08, 396,807.78 and 160,220.44
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Solution
The fourth proportional to 287,537.08, 396,807.78 and 160,220.44 is: 221,107.89
Step by Step Solution
- Step 1: Write the proportion equation
287,537.08 : 396,807.78 = 160,220.44 : x - Step 2: Convert to fraction form
287,537.08/396,807.78 = 160,220.44/x - Step 3: Cross multiply
287,537.08x = 396,807.78 × 160,220.44 - Step 4: Simplify right side
287,537.08x = 63,576,717,107.02 - Step 5: Solve for x
x = 63,576,717,107.02/287,537.08 - Step 6: Final answer
x = 221,107.89
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1.5x scale
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.