Finding the Fourth Proportional to 165,081.70, 247,622.55 and 138,837.70
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Solution
The fourth proportional to 165,081.70, 247,622.55 and 138,837.70 is: 208,256.55
Step by Step Solution
- Step 1: Write the proportion equation
165,081.70 : 247,622.55 = 138,837.70 : x - Step 2: Convert to fraction form
165,081.70/247,622.55 = 138,837.70/x - Step 3: Cross multiply
165,081.70x = 247,622.55 × 138,837.70 - Step 4: Simplify right side
165,081.70x = 34,379,345,310.14 - Step 5: Solve for x
x = 34,379,345,310.14/165,081.70 - Step 6: Final answer
x = 208,256.55
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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.