Finding the Fourth Proportional to 201,740.20, 301,832.70 and 131,756.20
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Solution
The fourth proportional to 201,740.20, 301,832.70 and 131,756.20 is: 197,126.45
Step by Step Solution
- Step 1: Write the proportion equation
201,740.20 : 301,832.70 = 131,756.20 : x - Step 2: Convert to fraction form
201,740.20/301,832.70 = 131,756.20/x - Step 3: Cross multiply
201,740.20x = 301,832.70 × 131,756.20 - Step 4: Simplify right side
201,740.20x = 39,768,329,587.74 - Step 5: Solve for x
x = 39,768,329,587.74/201,740.20 - Step 6: Final answer
x = 197,126.45
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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.