Finding the Fourth Proportional to 378,652.26, 522,531.71 and 208,886.34
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Solution
The fourth proportional to 378,652.26, 522,531.71 and 208,886.34 is: 288,258.52
Step by Step Solution
- Step 1: Write the proportion equation
378,652.26 : 522,531.71 = 208,886.34 : x - Step 2: Convert to fraction form
378,652.26/522,531.71 = 208,886.34/x - Step 3: Cross multiply
378,652.26x = 522,531.71 × 208,886.34 - Step 4: Simplify right side
378,652.26x = 109,149,739,309.21 - Step 5: Solve for x
x = 109,149,739,309.21/378,652.26 - Step 6: Final answer
x = 288,258.52
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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.