Finding the Fourth Proportional to 145,220.10, 217,830.15 and 133,847.70
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Solution
The fourth proportional to 145,220.10, 217,830.15 and 133,847.70 is: 200,771.55
Step by Step Solution
- Step 1: Write the proportion equation
145,220.10 : 217,830.15 = 133,847.70 : x - Step 2: Convert to fraction form
145,220.10/217,830.15 = 133,847.70/x - Step 3: Cross multiply
145,220.10x = 217,830.15 × 133,847.70 - Step 4: Simplify right side
145,220.10x = 29,156,064,568.16 - Step 5: Solve for x
x = 29,156,064,568.16/145,220.10 - Step 6: Final answer
x = 200,771.55
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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.