Finding the Fourth Proportional to 453,905.70, 680,858.55 and 121,481.70
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Solution
The fourth proportional to 453,905.70, 680,858.55 and 121,481.70 is: 182,222.55
Step by Step Solution
- Step 1: Write the proportion equation
453,905.70 : 680,858.55 = 121,481.70 : x - Step 2: Convert to fraction form
453,905.70/680,858.55 = 121,481.70/x - Step 3: Cross multiply
453,905.70x = 680,858.55 × 121,481.70 - Step 4: Simplify right side
453,905.70x = 82,711,854,113.54 - Step 5: Solve for x
x = 82,711,854,113.54/453,905.70 - Step 6: Final answer
x = 182,222.55
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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.