Finding the Fourth Proportional to 324,221.23, 447,406.74 and 180,990.35
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Solution
The fourth proportional to 324,221.23, 447,406.74 and 180,990.35 is: 249,756.32
Step by Step Solution
- Step 1: Write the proportion equation
324,221.23 : 447,406.74 = 180,990.35 : x - Step 2: Convert to fraction form
324,221.23/447,406.74 = 180,990.35/x - Step 3: Cross multiply
324,221.23x = 447,406.74 × 180,990.35 - Step 4: Simplify right side
324,221.23x = 80,976,301,905.70 - Step 5: Solve for x
x = 80,976,301,905.70/324,221.23 - Step 6: Final answer
x = 249,756.32
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1.5x scale
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.