Finding the Fourth Proportional to 431,378.80, 647,359.80 and 241,838.80
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Solution
The fourth proportional to 431,378.80, 647,359.80 and 241,838.80 is: 362,921.68
Step by Step Solution
- Step 1: Write the proportion equation
431,378.80 : 647,359.80 = 241,838.80 : x - Step 2: Convert to fraction form
431,378.80/647,359.80 = 241,838.80/x - Step 3: Cross multiply
431,378.80x = 647,359.80 × 241,838.80 - Step 4: Simplify right side
431,378.80x = 156,556,717,200.24 - Step 5: Solve for x
x = 156,556,717,200.24/431,378.80 - Step 6: Final answer
x = 362,921.68
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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.