Finding the Fourth Proportional to 295,811.12, 408,219.36 and 161,675.12
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Solution
The fourth proportional to 295,811.12, 408,219.36 and 161,675.12 is: 223,111.67
Step by Step Solution
- Step 1: Write the proportion equation
295,811.12 : 408,219.36 = 161,675.12 : x - Step 2: Convert to fraction form
295,811.12/408,219.36 = 161,675.12/x - Step 3: Cross multiply
295,811.12x = 408,219.36 × 161,675.12 - Step 4: Simplify right side
295,811.12x = 65,998,914,014.32 - Step 5: Solve for x
x = 65,998,914,014.32/295,811.12 - Step 6: Final answer
x = 223,111.67
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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.