Finding the Fourth Proportional to 251,628.19, 347,246.91 and 136,906.88
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Solution
The fourth proportional to 251,628.19, 347,246.91 and 136,906.88 is: 188,931.50
Step by Step Solution
- Step 1: Write the proportion equation
251,628.19 : 347,246.91 = 136,906.88 : x - Step 2: Convert to fraction form
251,628.19/347,246.91 = 136,906.88/x - Step 3: Cross multiply
251,628.19x = 347,246.91 × 136,906.88 - Step 4: Simplify right side
251,628.19x = 47,540,491,557.56 - Step 5: Solve for x
x = 47,540,491,557.56/251,628.19 - Step 6: Final answer
x = 188,931.50
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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.