Finding the Fourth Proportional to 235,497.18, 324,871.80 and 139,936.20
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Solution
The fourth proportional to 235,497.18, 324,871.80 and 139,936.20 is: 193,044.03
Step by Step Solution
- Step 1: Write the proportion equation
235,497.18 : 324,871.80 = 139,936.20 : x - Step 2: Convert to fraction form
235,497.18/324,871.80 = 139,936.20/x - Step 3: Cross multiply
235,497.18x = 324,871.80 × 139,936.20 - Step 4: Simplify right side
235,497.18x = 45,461,325,179.16 - Step 5: Solve for x
x = 45,461,325,179.16/235,497.18 - Step 6: Final answer
x = 193,044.03
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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.