Finding the Fourth Proportional to 305,683.62, 458,616.55 and 145,879.53
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Solution
The fourth proportional to 305,683.62, 458,616.55 and 145,879.53 is: 218,862.78
Step by Step Solution
- Step 1: Write the proportion equation
305,683.62 : 458,616.55 = 145,879.53 : x - Step 2: Convert to fraction form
305,683.62/458,616.55 = 145,879.53/x - Step 3: Cross multiply
305,683.62x = 458,616.55 × 145,879.53 - Step 4: Simplify right side
305,683.62x = 66,902,766,764.22 - Step 5: Solve for x
x = 66,902,766,764.22/305,683.62 - Step 6: Final answer
x = 218,862.78
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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.