Finding the Fourth Proportional to 407,542.60, 611,313.90 and 197,201.80
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Solution
The fourth proportional to 407,542.60, 611,313.90 and 197,201.80 is: 295,802.70
Step by Step Solution
- Step 1: Write the proportion equation
407,542.60 : 611,313.90 = 197,201.80 : x - Step 2: Convert to fraction form
407,542.60/611,313.90 = 197,201.80/x - Step 3: Cross multiply
407,542.60x = 611,313.90 × 197,201.80 - Step 4: Simplify right side
407,542.60x = 120,552,201,445.02 - Step 5: Solve for x
x = 120,552,201,445.02/407,542.60 - Step 6: Final answer
x = 295,802.70
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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.