Finding the Fourth Proportional to 299,422.20, 449,133.30 and 157,212.53
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Solution
The fourth proportional to 299,422.20, 449,133.30 and 157,212.53 is: 235,818.79
Step by Step Solution
- Step 1: Write the proportion equation
299,422.20 : 449,133.30 = 157,212.53 : x - Step 2: Convert to fraction form
299,422.20/449,133.30 = 157,212.53/x - Step 3: Cross multiply
299,422.20x = 449,133.30 × 157,212.53 - Step 4: Simplify right side
299,422.20x = 70,609,380,154.58 - Step 5: Solve for x
x = 70,609,380,154.58/299,422.20 - Step 6: Final answer
x = 235,818.79
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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.