Finding the Fourth Proportional to 319,249.41, 478,874.11 and 303,285.68
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Solution
The fourth proportional to 319,249.41, 478,874.11 and 303,285.68 is: 454,928.52
Step by Step Solution
- Step 1: Write the proportion equation
319,249.41 : 478,874.11 = 303,285.68 : x - Step 2: Convert to fraction form
319,249.41/478,874.11 = 303,285.68/x - Step 3: Cross multiply
319,249.41x = 478,874.11 × 303,285.68 - Step 4: Simplify right side
319,249.41x = 145,235,660,085.75 - Step 5: Solve for x
x = 145,235,660,085.75/319,249.41 - Step 6: Final answer
x = 454,928.52
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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.