Finding the Fourth Proportional to 366,915.20, 549,716.70 and 314,427.20
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Solution
The fourth proportional to 366,915.20, 549,716.70 and 314,427.20 is: 471,078.56
Step by Step Solution
- Step 1: Write the proportion equation
366,915.20 : 549,716.70 = 314,427.20 : x - Step 2: Convert to fraction form
366,915.20/549,716.70 = 314,427.20/x - Step 3: Cross multiply
366,915.20x = 549,716.70 × 314,427.20 - Step 4: Simplify right side
366,915.20x = 172,845,882,774.24 - Step 5: Solve for x
x = 172,845,882,774.24/366,915.20 - Step 6: Final answer
x = 471,078.56
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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.