Finding the Fourth Proportional to 256,887.75, 385,442.35 and 107,157.53
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Solution
The fourth proportional to 256,887.75, 385,442.35 and 107,157.53 is: 160,782.48
Step by Step Solution
- Step 1: Write the proportion equation
256,887.75 : 385,442.35 = 107,157.53 : x - Step 2: Convert to fraction form
256,887.75/385,442.35 = 107,157.53/x - Step 3: Cross multiply
256,887.75x = 385,442.35 × 107,157.53 - Step 4: Simplify right side
256,887.75x = 41,303,050,879.11 - Step 5: Solve for x
x = 41,303,050,879.11/256,887.75 - Step 6: Final answer
x = 160,782.48
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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.