Finding the Fourth Proportional to 483,249.40, 724,874.10 and 128,299.30
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Solution
The fourth proportional to 483,249.40, 724,874.10 and 128,299.30 is: 192,448.95
Step by Step Solution
- Step 1: Write the proportion equation
483,249.40 : 724,874.10 = 128,299.30 : x - Step 2: Convert to fraction form
483,249.40/724,874.10 = 128,299.30/x - Step 3: Cross multiply
483,249.40x = 724,874.10 × 128,299.30 - Step 4: Simplify right side
483,249.40x = 93,000,839,618.13 - Step 5: Solve for x
x = 93,000,839,618.13/483,249.40 - Step 6: Final answer
x = 192,448.95
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Similar ratio
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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.