Finding the Fourth Proportional to 393,690.16, 590,249.16 and 156,961.84
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Solution
The fourth proportional to 393,690.16, 590,249.16 and 156,961.84 is: 235,328.70
Step by Step Solution
- Step 1: Write the proportion equation
393,690.16 : 590,249.16 = 156,961.84 : x - Step 2: Convert to fraction form
393,690.16/590,249.16 = 156,961.84/x - Step 3: Cross multiply
393,690.16x = 590,249.16 × 156,961.84 - Step 4: Simplify right side
393,690.16x = 92,646,594,212.05 - Step 5: Solve for x
x = 92,646,594,212.05/393,690.16 - Step 6: Final answer
x = 235,328.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.