Finding the Fourth Proportional to 278,392.52, 417,452.70 and 194,193.02
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Solution
The fourth proportional to 278,392.52, 417,452.70 and 194,193.02 is: 291,194.61
Step by Step Solution
- Step 1: Write the proportion equation
278,392.52 : 417,452.70 = 194,193.02 : x - Step 2: Convert to fraction form
278,392.52/417,452.70 = 194,193.02/x - Step 3: Cross multiply
278,392.52x = 417,452.70 × 194,193.02 - Step 4: Simplify right side
278,392.52x = 81,066,400,520.15 - Step 5: Solve for x
x = 81,066,400,520.15/278,392.52 - Step 6: Final answer
x = 291,194.61
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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.