Finding the Fourth Proportional to 378,652.67, 522,532.27 and 208,886.75
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Solution
The fourth proportional to 378,652.67, 522,532.27 and 208,886.75 is: 288,259.07
Step by Step Solution
- Step 1: Write the proportion equation
378,652.67 : 522,532.27 = 208,886.75 : x - Step 2: Convert to fraction form
378,652.67/522,532.27 = 208,886.75/x - Step 3: Cross multiply
378,652.67x = 522,532.27 × 208,886.75 - Step 4: Simplify right side
378,652.67x = 109,150,067,650.42 - Step 5: Solve for x
x = 109,150,067,650.42/378,652.67 - Step 6: Final answer
x = 288,259.07
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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.