Finding the Fourth Proportional to 431,398.80, 647,389.80 and 241,858.80
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Solution
The fourth proportional to 431,398.80, 647,389.80 and 241,858.80 is: 362,951.68
Step by Step Solution
- Step 1: Write the proportion equation
431,398.80 : 647,389.80 = 241,858.80 : x - Step 2: Convert to fraction form
431,398.80/647,389.80 = 241,858.80/x - Step 3: Cross multiply
431,398.80x = 647,389.80 × 241,858.80 - Step 4: Simplify right side
431,398.80x = 156,576,920,160.24 - Step 5: Solve for x
x = 156,576,920,160.24/431,398.80 - Step 6: Final answer
x = 362,951.68
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1.5x scale
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.