Finding the Fourth Proportional to 331,719.40, 497,708.70 and 121,373.80
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Solution
The fourth proportional to 331,719.40, 497,708.70 and 121,373.80 is: 182,108.12
Step by Step Solution
- Step 1: Write the proportion equation
331,719.40 : 497,708.70 = 121,373.80 : x - Step 2: Convert to fraction form
331,719.40/497,708.70 = 121,373.80/x - Step 3: Cross multiply
331,719.40x = 497,708.70 × 121,373.80 - Step 4: Simplify right side
331,719.40x = 60,408,796,212.06 - Step 5: Solve for x
x = 60,408,796,212.06/331,719.40 - Step 6: Final answer
x = 182,108.12
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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.