Finding the Fourth Proportional to 146,247.28, 201,821.64 and 79,179.28
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Solution
The fourth proportional to 146,247.28, 201,821.64 and 79,179.28 is: 109,267.62
Step by Step Solution
- Step 1: Write the proportion equation
146,247.28 : 201,821.64 = 79,179.28 : x - Step 2: Convert to fraction form
146,247.28/201,821.64 = 79,179.28/x - Step 3: Cross multiply
146,247.28x = 201,821.64 × 79,179.28 - Step 4: Simplify right side
146,247.28x = 15,980,092,143.62 - Step 5: Solve for x
x = 15,980,092,143.62/146,247.28 - Step 6: Final answer
x = 109,267.62
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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.