Finding the Fourth Proportional to 378,559.28, 522,246.84 and 249,330.80
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Solution
The fourth proportional to 378,559.28, 522,246.84 and 249,330.80 is: 343,967.85
Step by Step Solution
- Step 1: Write the proportion equation
378,559.28 : 522,246.84 = 249,330.80 : x - Step 2: Convert to fraction form
378,559.28/522,246.84 = 249,330.80/x - Step 3: Cross multiply
378,559.28x = 522,246.84 × 249,330.80 - Step 4: Simplify right side
378,559.28x = 130,212,222,414.67 - Step 5: Solve for x
x = 130,212,222,414.67/378,559.28 - Step 6: Final answer
x = 343,967.85
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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.