Finding the Fourth Proportional to 211,289.49, 316,735.74 and 70,949.70
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Solution
The fourth proportional to 211,289.49, 316,735.74 and 70,949.70 is: 106,357.90
Step by Step Solution
- Step 1: Write the proportion equation
211,289.49 : 316,735.74 = 70,949.70 : x - Step 2: Convert to fraction form
211,289.49/316,735.74 = 70,949.70/x - Step 3: Cross multiply
211,289.49x = 316,735.74 × 70,949.70 - Step 4: Simplify right side
211,289.49x = 22,472,305,732.28 - Step 5: Solve for x
x = 22,472,305,732.28/211,289.49 - Step 6: Final answer
x = 106,357.90
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.