Finding the Fourth Proportional to 453,012.20, 679,522.38 and 137,469.09
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Solution
The fourth proportional to 453,012.20, 679,522.38 and 137,469.09 is: 206,204.88
Step by Step Solution
- Step 1: Write the proportion equation
453,012.20 : 679,522.38 = 137,469.09 : x - Step 2: Convert to fraction form
453,012.20/679,522.38 = 137,469.09/x - Step 3: Cross multiply
453,012.20x = 679,522.38 × 137,469.09 - Step 4: Simplify right side
453,012.20x = 93,413,323,213.23 - Step 5: Solve for x
x = 93,413,323,213.23/453,012.20 - Step 6: Final answer
x = 206,204.88
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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.