Finding the Fourth Proportional to 453,170.12, 679,711.14 and 137,629.80
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Solution
The fourth proportional to 453,170.12, 679,711.14 and 137,629.80 is: 206,431.32
Step by Step Solution
- Step 1: Write the proportion equation
453,170.12 : 679,711.14 = 137,629.80 : x - Step 2: Convert to fraction form
453,170.12/679,711.14 = 137,629.80/x - Step 3: Cross multiply
453,170.12x = 679,711.14 × 137,629.80 - Step 4: Simplify right side
453,170.12x = 93,548,508,255.97 - Step 5: Solve for x
x = 93,548,508,255.97/453,170.12 - Step 6: Final answer
x = 206,431.32
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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.