Finding the Fourth Proportional to 217,520.33, 300,180.11 and 122,029.08
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Solution
The fourth proportional to 217,520.33, 300,180.11 and 122,029.08 is: 168,401.28
Step by Step Solution
- Step 1: Write the proportion equation
217,520.33 : 300,180.11 = 122,029.08 : x - Step 2: Convert to fraction form
217,520.33/300,180.11 = 122,029.08/x - Step 3: Cross multiply
217,520.33x = 300,180.11 × 122,029.08 - Step 4: Simplify right side
217,520.33x = 36,630,701,602.08 - Step 5: Solve for x
x = 36,630,701,602.08/217,520.33 - Step 6: Final answer
x = 168,401.28
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.