Finding the Fourth Proportional to 427,481.99, 641,230.73 and 143,119.44
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Solution
The fourth proportional to 427,481.99, 641,230.73 and 143,119.44 is: 214,681.75
Step by Step Solution
- Step 1: Write the proportion equation
427,481.99 : 641,230.73 = 143,119.44 : x - Step 2: Convert to fraction form
427,481.99/641,230.73 = 143,119.44/x - Step 3: Cross multiply
427,481.99x = 641,230.73 × 143,119.44 - Step 4: Simplify right side
427,481.99x = 91,772,582,809.49 - Step 5: Solve for x
x = 91,772,582,809.49/427,481.99 - Step 6: Final answer
x = 214,681.75
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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.