Finding the Fourth Proportional to 287,115.08, 396,214.90 and 159,790.67
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Solution
The fourth proportional to 287,115.08, 396,214.90 and 159,790.67 is: 220,508.95
Step by Step Solution
- Step 1: Write the proportion equation
287,115.08 : 396,214.90 = 159,790.67 : x - Step 2: Convert to fraction form
287,115.08/396,214.90 = 159,790.67/x - Step 3: Cross multiply
287,115.08x = 396,214.90 × 159,790.67 - Step 4: Simplify right side
287,115.08x = 63,311,444,334.98 - Step 5: Solve for x
x = 63,311,444,334.98/287,115.08 - Step 6: Final answer
x = 220,508.95
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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.