Finding the Fourth Proportional to 290,235.43, 435,355.85 and 87,832.99
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Solution
The fourth proportional to 290,235.43, 435,355.85 and 87,832.99 is: 131,750.30
Step by Step Solution
- Step 1: Write the proportion equation
290,235.43 : 435,355.85 = 87,832.99 : x - Step 2: Convert to fraction form
290,235.43/435,355.85 = 87,832.99/x - Step 3: Cross multiply
290,235.43x = 435,355.85 × 87,832.99 - Step 4: Simplify right side
290,235.43x = 38,238,606,019.49 - Step 5: Solve for x
x = 38,238,606,019.49/290,235.43 - Step 6: Final answer
x = 131,750.30
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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.