Finding the Fourth Proportional to 287,874.23, 397,267.08 and 160,558.02
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Solution
The fourth proportional to 287,874.23, 397,267.08 and 160,558.02 is: 221,570.43
Step by Step Solution
- Step 1: Write the proportion equation
287,874.23 : 397,267.08 = 160,558.02 : x - Step 2: Convert to fraction form
287,874.23/397,267.08 = 160,558.02/x - Step 3: Cross multiply
287,874.23x = 397,267.08 × 160,558.02 - Step 4: Simplify right side
287,874.23x = 63,784,415,775.98 - Step 5: Solve for x
x = 63,784,415,775.98/287,874.23 - Step 6: Final answer
x = 221,570.43
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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.