Finding the Fourth Proportional to 285,128.76, 393,433.85 and 164,246.44
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Solution
The fourth proportional to 285,128.76, 393,433.85 and 164,246.44 is: 226,634.84
Step by Step Solution
- Step 1: Write the proportion equation
285,128.76 : 393,433.85 = 164,246.44 : x - Step 2: Convert to fraction form
285,128.76/393,433.85 = 164,246.44/x - Step 3: Cross multiply
285,128.76x = 393,433.85 × 164,246.44 - Step 4: Simplify right side
285,128.76x = 64,620,108,665.03 - Step 5: Solve for x
x = 64,620,108,665.03/285,128.76 - Step 6: Final answer
x = 226,634.84
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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.