Finding the Fourth Proportional to 287,058.24, 396,137.52 and 159,731.64
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Solution
The fourth proportional to 287,058.24, 396,137.52 and 159,731.64 is: 220,428.08
Step by Step Solution
- Step 1: Write the proportion equation
287,058.24 : 396,137.52 = 159,731.64 : x - Step 2: Convert to fraction form
287,058.24/396,137.52 = 159,731.64/x - Step 3: Cross multiply
287,058.24x = 396,137.52 × 159,731.64 - Step 4: Simplify right side
287,058.24x = 63,275,695,735.13 - Step 5: Solve for x
x = 63,275,695,735.13/287,058.24 - Step 6: Final answer
x = 220,428.08
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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.