Finding the Fourth Proportional to 417,089.80, 625,634.70 and 207,137.80
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Solution
The fourth proportional to 417,089.80, 625,634.70 and 207,137.80 is: 310,706.70
Step by Step Solution
- Step 1: Write the proportion equation
417,089.80 : 625,634.70 = 207,137.80 : x - Step 2: Convert to fraction form
417,089.80/625,634.70 = 207,137.80/x - Step 3: Cross multiply
417,089.80x = 625,634.70 × 207,137.80 - Step 4: Simplify right side
417,089.80x = 129,592,595,361.66 - Step 5: Solve for x
x = 129,592,595,361.66/417,089.80 - Step 6: Final answer
x = 310,706.70
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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.