Finding the Fourth Proportional to 318,961.40, 477,851.70 and 185,905.40
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Solution
The fourth proportional to 318,961.40, 477,851.70 and 185,905.40 is: 278,513.99
Step by Step Solution
- Step 1: Write the proportion equation
318,961.40 : 477,851.70 = 185,905.40 : x - Step 2: Convert to fraction form
318,961.40/477,851.70 = 185,905.40/x - Step 3: Cross multiply
318,961.40x = 477,851.70 × 185,905.40 - Step 4: Simplify right side
318,961.40x = 88,835,211,429.18 - Step 5: Solve for x
x = 88,835,211,429.18/318,961.40 - Step 6: Final answer
x = 278,513.99
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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.