Finding the Fourth Proportional to 269,305.68, 371,619.99 and 156,135.72
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Solution
The fourth proportional to 269,305.68, 371,619.99 and 156,135.72 is: 215,454.63
Step by Step Solution
- Step 1: Write the proportion equation
269,305.68 : 371,619.99 = 156,135.72 : x - Step 2: Convert to fraction form
269,305.68/371,619.99 = 156,135.72/x - Step 3: Cross multiply
269,305.68x = 371,619.99 × 156,135.72 - Step 4: Simplify right side
269,305.68x = 58,023,154,705.04 - Step 5: Solve for x
x = 58,023,154,705.04/269,305.68 - Step 6: Final answer
x = 215,454.63
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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.