Finding the Fourth Proportional to 305,683.74, 458,616.74 and 145,879.65
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Solution
The fourth proportional to 305,683.74, 458,616.74 and 145,879.65 is: 218,862.96
Step by Step Solution
- Step 1: Write the proportion equation
305,683.74 : 458,616.74 = 145,879.65 : x - Step 2: Convert to fraction form
305,683.74/458,616.74 = 145,879.65/x - Step 3: Cross multiply
305,683.74x = 458,616.74 × 145,879.65 - Step 4: Simplify right side
305,683.74x = 66,902,848,785.94 - Step 5: Solve for x
x = 66,902,848,785.94/305,683.74 - Step 6: Final answer
x = 218,862.96
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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.