Finding the Fourth Proportional to 208,041.70, 312,062.55 and 194,919.70
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Solution
The fourth proportional to 208,041.70, 312,062.55 and 194,919.70 is: 292,379.55
Step by Step Solution
- Step 1: Write the proportion equation
208,041.70 : 312,062.55 = 194,919.70 : x - Step 2: Convert to fraction form
208,041.70/312,062.55 = 194,919.70/x - Step 3: Cross multiply
208,041.70x = 312,062.55 × 194,919.70 - Step 4: Simplify right side
208,041.70x = 60,827,138,627.24 - Step 5: Solve for x
x = 60,827,138,627.24/208,041.70 - Step 6: Final answer
x = 292,379.55
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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.