Finding the Fourth Proportional to 178,415.70, 267,623.55 and 143,423.70
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Solution
The fourth proportional to 178,415.70, 267,623.55 and 143,423.70 is: 215,135.55
Step by Step Solution
- Step 1: Write the proportion equation
178,415.70 : 267,623.55 = 143,423.70 : x - Step 2: Convert to fraction form
178,415.70/267,623.55 = 143,423.70/x - Step 3: Cross multiply
178,415.70x = 267,623.55 × 143,423.70 - Step 4: Simplify right side
178,415.70x = 38,383,559,748.14 - Step 5: Solve for x
x = 38,383,559,748.14/178,415.70 - Step 6: Final answer
x = 215,135.55
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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.