Finding the Fourth Proportional to 178,245.70, 267,368.55 and 143,253.70
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Solution
The fourth proportional to 178,245.70, 267,368.55 and 143,253.70 is: 214,880.55
Step by Step Solution
- Step 1: Write the proportion equation
178,245.70 : 267,368.55 = 143,253.70 : x - Step 2: Convert to fraction form
178,245.70/267,368.55 = 143,253.70/x - Step 3: Cross multiply
178,245.70x = 267,368.55 × 143,253.70 - Step 4: Simplify right side
178,245.70x = 38,301,534,051.14 - Step 5: Solve for x
x = 38,301,534,051.14/178,245.70 - Step 6: Final answer
x = 214,880.55
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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.