Finding the Fourth Proportional to 156,738.12, 235,107.18 and 38,408.44
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Solution
The fourth proportional to 156,738.12, 235,107.18 and 38,408.44 is: 57,612.66
Step by Step Solution
- Step 1: Write the proportion equation
156,738.12 : 235,107.18 = 38,408.44 : x - Step 2: Convert to fraction form
156,738.12/235,107.18 = 38,408.44/x - Step 3: Cross multiply
156,738.12x = 235,107.18 × 38,408.44 - Step 4: Simplify right side
156,738.12x = 9,030,100,016.60 - Step 5: Solve for x
x = 9,030,100,016.60/156,738.12 - Step 6: Final answer
x = 57,612.66
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1.5x scale
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.