Finding the Fourth Proportional to 323,987.19, 486,197.70 and 134,447.74
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Solution
The fourth proportional to 323,987.19, 486,197.70 and 134,447.74 is: 201,761.63
Step by Step Solution
- Step 1: Write the proportion equation
323,987.19 : 486,197.70 = 134,447.74 : x - Step 2: Convert to fraction form
323,987.19/486,197.70 = 134,447.74/x - Step 3: Cross multiply
323,987.19x = 486,197.70 × 134,447.74 - Step 4: Simplify right side
323,987.19x = 65,368,181,958.20 - Step 5: Solve for x
x = 65,368,181,958.20/323,987.19 - Step 6: Final answer
x = 201,761.63
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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.