Finding the Fourth Proportional to 287,136.24, 396,237.82 and 159,809.08
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Solution
The fourth proportional to 287,136.24, 396,237.82 and 159,809.08 is: 220,530.86
Step by Step Solution
- Step 1: Write the proportion equation
287,136.24 : 396,237.82 = 159,809.08 : x - Step 2: Convert to fraction form
287,136.24/396,237.82 = 159,809.08/x - Step 3: Cross multiply
287,136.24x = 396,237.82 × 159,809.08 - Step 4: Simplify right side
287,136.24x = 63,322,401,475.41 - Step 5: Solve for x
x = 63,322,401,475.41/287,136.24 - Step 6: Final answer
x = 220,530.86
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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.