Finding the Fourth Proportional to 299,422.20, 449,133.30 and 121,837.80
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Solution
The fourth proportional to 299,422.20, 449,133.30 and 121,837.80 is: 182,756.70
Step by Step Solution
- Step 1: Write the proportion equation
299,422.20 : 449,133.30 = 121,837.80 : x - Step 2: Convert to fraction form
299,422.20/449,133.30 = 121,837.80/x - Step 3: Cross multiply
299,422.20x = 449,133.30 × 121,837.80 - Step 4: Simplify right side
299,422.20x = 54,721,413,178.74 - Step 5: Solve for x
x = 54,721,413,178.74/299,422.20 - Step 6: Final answer
x = 182,756.70
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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.