Finding the Fourth Proportional to 614,220.80, 921,331.20 and 193,539.20
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Solution
The fourth proportional to 614,220.80, 921,331.20 and 193,539.20 is: 290,308.80
Step by Step Solution
- Step 1: Write the proportion equation
614,220.80 : 921,331.20 = 193,539.20 : x - Step 2: Convert to fraction form
614,220.80/921,331.20 = 193,539.20/x - Step 3: Cross multiply
614,220.80x = 921,331.20 × 193,539.20 - Step 4: Simplify right side
614,220.80x = 178,313,703,383.04 - Step 5: Solve for x
x = 178,313,703,383.04/614,220.80 - Step 6: Final answer
x = 290,308.80
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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.