Finding the Fourth Proportional to 330,247.80, 495,371.70 and 212,149.80
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Solution
The fourth proportional to 330,247.80, 495,371.70 and 212,149.80 is: 318,224.70
Step by Step Solution
- Step 1: Write the proportion equation
330,247.80 : 495,371.70 = 212,149.80 : x - Step 2: Convert to fraction form
330,247.80/495,371.70 = 212,149.80/x - Step 3: Cross multiply
330,247.80x = 495,371.70 × 212,149.80 - Step 4: Simplify right side
330,247.80x = 105,093,007,080.66 - Step 5: Solve for x
x = 105,093,007,080.66/330,247.80 - Step 6: Final answer
x = 318,224.70
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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.