Finding the Fourth Proportional to 330,109.20, 495,163.80 and 307,801.80
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Solution
The fourth proportional to 330,109.20, 495,163.80 and 307,801.80 is: 461,702.70
Step by Step Solution
- Step 1: Write the proportion equation
330,109.20 : 495,163.80 = 307,801.80 : x - Step 2: Convert to fraction form
330,109.20/495,163.80 = 307,801.80/x - Step 3: Cross multiply
330,109.20x = 495,163.80 × 307,801.80 - Step 4: Simplify right side
330,109.20x = 152,412,308,934.84 - Step 5: Solve for x
x = 152,412,308,934.84/330,109.20 - Step 6: Final answer
x = 461,702.70
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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.