Finding the Fourth Proportional to 331,898.10, 497,789.55 and 121,427.70
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Solution
The fourth proportional to 331,898.10, 497,789.55 and 121,427.70 is: 182,120.48
Step by Step Solution
- Step 1: Write the proportion equation
331,898.10 : 497,789.55 = 121,427.70 : x - Step 2: Convert to fraction form
331,898.10/497,789.55 = 121,427.70/x - Step 3: Cross multiply
331,898.10x = 497,789.55 × 121,427.70 - Step 4: Simplify right side
331,898.10x = 60,445,440,140.54 - Step 5: Solve for x
x = 60,445,440,140.54/331,898.10 - Step 6: Final answer
x = 182,120.48
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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.