Finding the Fourth Proportional to 307,745.80, 461,618.70 and 141,857.80
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Solution
The fourth proportional to 307,745.80, 461,618.70 and 141,857.80 is: 212,786.70
Step by Step Solution
- Step 1: Write the proportion equation
307,745.80 : 461,618.70 = 141,857.80 : x - Step 2: Convert to fraction form
307,745.80/461,618.70 = 141,857.80/x - Step 3: Cross multiply
307,745.80x = 461,618.70 × 141,857.80 - Step 4: Simplify right side
307,745.80x = 65,484,213,220.86 - Step 5: Solve for x
x = 65,484,213,220.86/307,745.80 - Step 6: Final answer
x = 212,786.70
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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.