Finding the Fourth Proportional to 330,069.80, 495,104.70 and 80,751.80
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Solution
The fourth proportional to 330,069.80, 495,104.70 and 80,751.80 is: 121,127.70
Step by Step Solution
- Step 1: Write the proportion equation
330,069.80 : 495,104.70 = 80,751.80 : x - Step 2: Convert to fraction form
330,069.80/495,104.70 = 80,751.80/x - Step 3: Cross multiply
330,069.80x = 495,104.70 × 80,751.80 - Step 4: Simplify right side
330,069.80x = 39,980,595,713.46 - Step 5: Solve for x
x = 39,980,595,713.46/330,069.80 - Step 6: Final answer
x = 121,127.70
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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.