Finding the Fourth Proportional to 211,021.20, 316,531.80 and 63,277.20
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Solution
The fourth proportional to 211,021.20, 316,531.80 and 63,277.20 is: 94,915.80
Step by Step Solution
- Step 1: Write the proportion equation
211,021.20 : 316,531.80 = 63,277.20 : x - Step 2: Convert to fraction form
211,021.20/316,531.80 = 63,277.20/x - Step 3: Cross multiply
211,021.20x = 316,531.80 × 63,277.20 - Step 4: Simplify right side
211,021.20x = 20,029,246,014.96 - Step 5: Solve for x
x = 20,029,246,014.96/211,021.20 - Step 6: Final answer
x = 94,915.80
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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.