Finding the Fourth Proportional to 453,815.70, 680,723.55 and 121,391.70
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Solution
The fourth proportional to 453,815.70, 680,723.55 and 121,391.70 is: 182,087.55
Step by Step Solution
- Step 1: Write the proportion equation
453,815.70 : 680,723.55 = 121,391.70 : x - Step 2: Convert to fraction form
453,815.70/680,723.55 = 121,391.70/x - Step 3: Cross multiply
453,815.70x = 680,723.55 × 121,391.70 - Step 4: Simplify right side
453,815.70x = 82,634,188,964.54 - Step 5: Solve for x
x = 82,634,188,964.54/453,815.70 - Step 6: Final answer
x = 182,087.55
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1.5x scale
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.