Finding the Fourth Proportional to 378,852.68, 522,884.50 and 225,900.74
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Solution
The fourth proportional to 378,852.68, 522,884.50 and 225,900.74 is: 311,783.45
Step by Step Solution
- Step 1: Write the proportion equation
378,852.68 : 522,884.50 = 225,900.74 : x - Step 2: Convert to fraction form
378,852.68/522,884.50 = 225,900.74/x - Step 3: Cross multiply
378,852.68x = 522,884.50 × 225,900.74 - Step 4: Simplify right side
378,852.68x = 118,119,995,484.53 - Step 5: Solve for x
x = 118,119,995,484.53/378,852.68 - Step 6: Final answer
x = 311,783.45
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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.