Finding the Fourth Proportional to 378,460.36, 522,079.86 and 235,165.96
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Solution
The fourth proportional to 378,460.36, 522,079.86 and 235,165.96 is: 324,407.59
Step by Step Solution
- Step 1: Write the proportion equation
378,460.36 : 522,079.86 = 235,165.96 : x - Step 2: Convert to fraction form
378,460.36/522,079.86 = 235,165.96/x - Step 3: Cross multiply
378,460.36x = 522,079.86 × 235,165.96 - Step 4: Simplify right side
378,460.36x = 122,775,411,473.57 - Step 5: Solve for x
x = 122,775,411,473.57/378,460.36 - Step 6: Final answer
x = 324,407.59
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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.