Finding the Fourth Proportional to 493,351.20, 739,897.12 and 212,806.08
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Solution
The fourth proportional to 493,351.20, 739,897.12 and 212,806.08 is: 319,153.18
Step by Step Solution
- Step 1: Write the proportion equation
493,351.20 : 739,897.12 = 212,806.08 : x - Step 2: Convert to fraction form
493,351.20/739,897.12 = 212,806.08/x - Step 3: Cross multiply
493,351.20x = 739,897.12 × 212,806.08 - Step 4: Simplify right side
493,351.20x = 157,454,605,710.49 - Step 5: Solve for x
x = 157,454,605,710.49/493,351.20 - Step 6: Final answer
x = 319,153.18
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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.