Finding the Fourth Proportional to 194,166.10, 291,249.15 and 115,239.70
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Solution
The fourth proportional to 194,166.10, 291,249.15 and 115,239.70 is: 172,859.55
Step by Step Solution
- Step 1: Write the proportion equation
194,166.10 : 291,249.15 = 115,239.70 : x - Step 2: Convert to fraction form
194,166.10/291,249.15 = 115,239.70/x - Step 3: Cross multiply
194,166.10x = 291,249.15 × 115,239.70 - Step 4: Simplify right side
194,166.10x = 33,563,464,671.26 - Step 5: Solve for x
x = 33,563,464,671.26/194,166.10 - Step 6: Final answer
x = 172,859.55
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1.5x scale
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.