Finding the Fourth Proportional to 246,146.28, 339,691.86 and 138,720.84
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Solution
The fourth proportional to 246,146.28, 339,691.86 and 138,720.84 is: 191,440.39
Step by Step Solution
- Step 1: Write the proportion equation
246,146.28 : 339,691.86 = 138,720.84 : x - Step 2: Convert to fraction form
246,146.28/339,691.86 = 138,720.84/x - Step 3: Cross multiply
246,146.28x = 339,691.86 × 138,720.84 - Step 4: Simplify right side
246,146.28x = 47,122,340,160.36 - Step 5: Solve for x
x = 47,122,340,160.36/246,146.28 - Step 6: Final answer
x = 191,440.39
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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.