Finding the Fourth Proportional to 201,639.60, 302,113.80 and 131,482.80
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Solution
The fourth proportional to 201,639.60, 302,113.80 and 131,482.80 is: 196,998.85
Step by Step Solution
- Step 1: Write the proportion equation
201,639.60 : 302,113.80 = 131,482.80 : x - Step 2: Convert to fraction form
201,639.60/302,113.80 = 131,482.80/x - Step 3: Cross multiply
201,639.60x = 302,113.80 × 131,482.80 - Step 4: Simplify right side
201,639.60x = 39,722,768,342.64 - Step 5: Solve for x
x = 39,722,768,342.64/201,639.60 - Step 6: Final answer
x = 196,998.85
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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.