Finding the Fourth Proportional to 425,722.08, 638,589.36 and 126,233.12
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Solution
The fourth proportional to 425,722.08, 638,589.36 and 126,233.12 is: 189,351.53
Step by Step Solution
- Step 1: Write the proportion equation
425,722.08 : 638,589.36 = 126,233.12 : x - Step 2: Convert to fraction form
425,722.08/638,589.36 = 126,233.12/x - Step 3: Cross multiply
425,722.08x = 638,589.36 × 126,233.12 - Step 4: Simplify right side
425,722.08x = 80,611,127,311.60 - Step 5: Solve for x
x = 80,611,127,311.60/425,722.08 - Step 6: Final answer
x = 189,351.53
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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.