Finding the Fourth Proportional to 221,310.35, 331,884.12 and 79,117.19
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Solution
The fourth proportional to 221,310.35, 331,884.12 and 79,117.19 is: 118,646.68
Step by Step Solution
- Step 1: Write the proportion equation
221,310.35 : 331,884.12 = 79,117.19 : x - Step 2: Convert to fraction form
221,310.35/331,884.12 = 79,117.19/x - Step 3: Cross multiply
221,310.35x = 331,884.12 × 79,117.19 - Step 4: Simplify right side
221,310.35x = 26,257,738,980.02 - Step 5: Solve for x
x = 26,257,738,980.02/221,310.35 - Step 6: Final answer
x = 118,646.68
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1.5x scale
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.