Finding the Fourth Proportional to 203,946.95, 305,919.21 and 79,287.95
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Solution
The fourth proportional to 203,946.95, 305,919.21 and 79,287.95 is: 118,931.45
Step by Step Solution
- Step 1: Write the proportion equation
203,946.95 : 305,919.21 = 79,287.95 : x - Step 2: Convert to fraction form
203,946.95/305,919.21 = 79,287.95/x - Step 3: Cross multiply
203,946.95x = 305,919.21 × 79,287.95 - Step 4: Simplify right side
203,946.95x = 24,255,707,026.52 - Step 5: Solve for x
x = 24,255,707,026.52/203,946.95 - Step 6: Final answer
x = 118,931.45
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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.