Finding the Fourth Proportional to 417,122.20, 625,812.90 and 164,434.60
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Solution
The fourth proportional to 417,122.20, 625,812.90 and 164,434.60 is: 246,702.99
Step by Step Solution
- Step 1: Write the proportion equation
417,122.20 : 625,812.90 = 164,434.60 : x - Step 2: Convert to fraction form
417,122.20/625,812.90 = 164,434.60/x - Step 3: Cross multiply
417,122.20x = 625,812.90 × 164,434.60 - Step 4: Simplify right side
417,122.20x = 102,905,293,886.34 - Step 5: Solve for x
x = 102,905,293,886.34/417,122.20 - Step 6: Final answer
x = 246,702.99
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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.