Finding the Fourth Proportional to 324,357.18, 486,534.61 and 87,699.88
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Solution
The fourth proportional to 324,357.18, 486,534.61 and 87,699.88 is: 131,549.51
Step by Step Solution
- Step 1: Write the proportion equation
324,357.18 : 486,534.61 = 87,699.88 : x - Step 2: Convert to fraction form
324,357.18/486,534.61 = 87,699.88/x - Step 3: Cross multiply
324,357.18x = 486,534.61 × 87,699.88 - Step 4: Simplify right side
324,357.18x = 42,669,026,912.85 - Step 5: Solve for x
x = 42,669,026,912.85/324,357.18 - Step 6: Final answer
x = 131,549.51
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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.