Finding the Fourth Proportional to 234,869.31, 324,203.70 and 139,376.00
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Solution
The fourth proportional to 234,869.31, 324,203.70 and 139,376.00 is: 192,388.75
Step by Step Solution
- Step 1: Write the proportion equation
234,869.31 : 324,203.70 = 139,376.00 : x - Step 2: Convert to fraction form
234,869.31/324,203.70 = 139,376.00/x - Step 3: Cross multiply
234,869.31x = 324,203.70 × 139,376.00 - Step 4: Simplify right side
234,869.31x = 45,186,213,270.18 - Step 5: Solve for x
x = 45,186,213,270.18/234,869.31 - Step 6: Final answer
x = 192,388.75
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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.