Finding the Fourth Proportional to 378,407.66, 522,293.55 and 227,475.50
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Solution
The fourth proportional to 378,407.66, 522,293.55 and 227,475.50 is: 313,970.88
Step by Step Solution
- Step 1: Write the proportion equation
378,407.66 : 522,293.55 = 227,475.50 : x - Step 2: Convert to fraction form
378,407.66/522,293.55 = 227,475.50/x - Step 3: Cross multiply
378,407.66x = 522,293.55 × 227,475.50 - Step 4: Simplify right side
378,407.66x = 118,808,986,433.03 - Step 5: Solve for x
x = 118,808,986,433.03/378,407.66 - Step 6: Final answer
x = 313,970.88
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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.