Finding the Fourth Proportional to 165,380.70, 247,874.12 and 115,189.14
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Solution
The fourth proportional to 165,380.70, 247,874.12 and 115,189.14 is: 172,646.55
Step by Step Solution
- Step 1: Write the proportion equation
165,380.70 : 247,874.12 = 115,189.14 : x - Step 2: Convert to fraction form
165,380.70/247,874.12 = 115,189.14/x - Step 3: Cross multiply
165,380.70x = 247,874.12 × 115,189.14 - Step 4: Simplify right side
165,380.70x = 28,552,406,711.06 - Step 5: Solve for x
x = 28,552,406,711.06/165,380.70 - Step 6: Final answer
x = 172,646.55
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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.