Finding the Fourth Proportional to 493,339.20, 739,879.14 and 212,794.08
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Solution
The fourth proportional to 493,339.20, 739,879.14 and 212,794.08 is: 319,135.19
Step by Step Solution
- Step 1: Write the proportion equation
493,339.20 : 739,879.14 = 212,794.08 : x - Step 2: Convert to fraction form
493,339.20/739,879.14 = 212,794.08/x - Step 3: Cross multiply
493,339.20x = 739,879.14 × 212,794.08 - Step 4: Simplify right side
493,339.20x = 157,441,900,907.49 - Step 5: Solve for x
x = 157,441,900,907.49/493,339.20 - Step 6: Final answer
x = 319,135.19
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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.