Finding the Fourth Proportional to 306,400.80, 459,212.40 and 271,408.80
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Solution
The fourth proportional to 306,400.80, 459,212.40 and 271,408.80 is: 406,768.80
Step by Step Solution
- Step 1: Write the proportion equation
306,400.80 : 459,212.40 = 271,408.80 : x - Step 2: Convert to fraction form
306,400.80/459,212.40 = 271,408.80/x - Step 3: Cross multiply
306,400.80x = 459,212.40 × 271,408.80 - Step 4: Simplify right side
306,400.80x = 124,634,286,429.12 - Step 5: Solve for x
x = 124,634,286,429.12/306,400.80 - Step 6: Final answer
x = 406,768.80
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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.