Finding the Fourth Proportional to 318,774.21, 477,939.37 and 141,184.95
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Solution
The fourth proportional to 318,774.21, 477,939.37 and 141,184.95 is: 211,679.12
Step by Step Solution
- Step 1: Write the proportion equation
318,774.21 : 477,939.37 = 141,184.95 : x - Step 2: Convert to fraction form
318,774.21/477,939.37 = 141,184.95/x - Step 3: Cross multiply
318,774.21x = 477,939.37 × 141,184.95 - Step 4: Simplify right side
318,774.21x = 67,477,844,175.97 - Step 5: Solve for x
x = 67,477,844,175.97/318,774.21 - Step 6: Final answer
x = 211,679.12
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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.