Finding the Fourth Proportional to 299,415.16, 449,122.74 and 239,161.52
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Solution
The fourth proportional to 299,415.16, 449,122.74 and 239,161.52 is: 358,742.28
Step by Step Solution
- Step 1: Write the proportion equation
299,415.16 : 449,122.74 = 239,161.52 : x - Step 2: Convert to fraction form
299,415.16/449,122.74 = 239,161.52/x - Step 3: Cross multiply
299,415.16x = 449,122.74 × 239,161.52 - Step 4: Simplify right side
299,415.16x = 107,412,877,164.97 - Step 5: Solve for x
x = 107,412,877,164.97/299,415.16 - Step 6: Final answer
x = 358,742.28
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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.