Finding the Fourth Proportional to 162,403.60, 243,259.80 and 131,299.60
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Solution
The fourth proportional to 162,403.60, 243,259.80 and 131,299.60 is: 196,669.99
Step by Step Solution
- Step 1: Write the proportion equation
162,403.60 : 243,259.80 = 131,299.60 : x - Step 2: Convert to fraction form
162,403.60/243,259.80 = 131,299.60/x - Step 3: Cross multiply
162,403.60x = 243,259.80 × 131,299.60 - Step 4: Simplify right side
162,403.60x = 31,939,914,436.08 - Step 5: Solve for x
x = 31,939,914,436.08/162,403.60 - Step 6: Final answer
x = 196,669.99
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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.