Finding the Fourth Proportional to 235,362.14, 324,765.94 and 138,508.42
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Solution
The fourth proportional to 235,362.14, 324,765.94 and 138,508.42 is: 191,121.72
Step by Step Solution
- Step 1: Write the proportion equation
235,362.14 : 324,765.94 = 138,508.42 : x - Step 2: Convert to fraction form
235,362.14/324,765.94 = 138,508.42/x - Step 3: Cross multiply
235,362.14x = 324,765.94 × 138,508.42 - Step 4: Simplify right side
235,362.14x = 44,982,817,219.21 - Step 5: Solve for x
x = 44,982,817,219.21/235,362.14 - Step 6: Final answer
x = 191,121.72
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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.