Finding the Fourth Proportional to 455,445.75, 628,515.14 and 254,241.75
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Solution
The fourth proportional to 455,445.75, 628,515.14 and 254,241.75 is: 350,853.62
Step by Step Solution
- Step 1: Write the proportion equation
455,445.75 : 628,515.14 = 254,241.75 : x - Step 2: Convert to fraction form
455,445.75/628,515.14 = 254,241.75/x - Step 3: Cross multiply
455,445.75x = 628,515.14 × 254,241.75 - Step 4: Simplify right side
455,445.75x = 159,794,789,095.10 - Step 5: Solve for x
x = 159,794,789,095.10/455,445.75 - Step 6: Final answer
x = 350,853.62
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1.5x scale
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.