Finding the Fourth Proportional to 209,416.08, 314,122.68 and 84,755.28
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Solution
The fourth proportional to 209,416.08, 314,122.68 and 84,755.28 is: 127,132.34
Step by Step Solution
- Step 1: Write the proportion equation
209,416.08 : 314,122.68 = 84,755.28 : x - Step 2: Convert to fraction form
209,416.08/314,122.68 = 84,755.28/x - Step 3: Cross multiply
209,416.08x = 314,122.68 × 84,755.28 - Step 4: Simplify right side
209,416.08x = 26,623,555,697.75 - Step 5: Solve for x
x = 26,623,555,697.75/209,416.08 - Step 6: Final answer
x = 127,132.34
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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.