Finding the Fourth Proportional to 329,093.20, 493,639.80 and 214,931.80
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Solution
The fourth proportional to 329,093.20, 493,639.80 and 214,931.80 is: 322,397.70
Step by Step Solution
- Step 1: Write the proportion equation
329,093.20 : 493,639.80 = 214,931.80 : x - Step 2: Convert to fraction form
329,093.20/493,639.80 = 214,931.80/x - Step 3: Cross multiply
329,093.20x = 493,639.80 × 214,931.80 - Step 4: Simplify right side
329,093.20x = 106,098,890,765.64 - Step 5: Solve for x
x = 106,098,890,765.64/329,093.20 - Step 6: Final answer
x = 322,397.70
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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.