Finding the Fourth Proportional to 202,419.20, 303,628.80 and 97,212.80
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Solution
The fourth proportional to 202,419.20, 303,628.80 and 97,212.80 is: 145,819.20
Step by Step Solution
- Step 1: Write the proportion equation
202,419.20 : 303,628.80 = 97,212.80 : x - Step 2: Convert to fraction form
202,419.20/303,628.80 = 97,212.80/x - Step 3: Cross multiply
202,419.20x = 303,628.80 × 97,212.80 - Step 4: Simplify right side
202,419.20x = 29,516,605,808.64 - Step 5: Solve for x
x = 29,516,605,808.64/202,419.20 - Step 6: Final answer
x = 145,819.20
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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.