Finding the Fourth Proportional to 326,153.70, 489,279.15 and 115,774.02
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Solution
The fourth proportional to 326,153.70, 489,279.15 and 115,774.02 is: 173,678.28
Step by Step Solution
- Step 1: Write the proportion equation
326,153.70 : 489,279.15 = 115,774.02 : x - Step 2: Convert to fraction form
326,153.70/489,279.15 = 115,774.02/x - Step 3: Cross multiply
326,153.70x = 489,279.15 × 115,774.02 - Step 4: Simplify right side
326,153.70x = 56,645,814,097.68 - Step 5: Solve for x
x = 56,645,814,097.68/326,153.70 - Step 6: Final answer
x = 173,678.28
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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.