Finding the Fourth Proportional to 151,421.14, 207,447.70 and 145,745.83
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Solution
The fourth proportional to 151,421.14, 207,447.70 and 145,745.83 is: 199,672.50
Step by Step Solution
- Step 1: Write the proportion equation
151,421.14 : 207,447.70 = 145,745.83 : x - Step 2: Convert to fraction form
151,421.14/207,447.70 = 145,745.83/x - Step 3: Cross multiply
151,421.14x = 207,447.70 × 145,745.83 - Step 4: Simplify right side
151,421.14x = 30,234,637,218.09 - Step 5: Solve for x
x = 30,234,637,218.09/151,421.14 - Step 6: Final answer
x = 199,672.50
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.