Finding the Fourth Proportional to 278,226.99, 383,961.94 and 157,365.92
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Solution
The fourth proportional to 278,226.99, 383,961.94 and 157,365.92 is: 217,169.88
Step by Step Solution
- Step 1: Write the proportion equation
278,226.99 : 383,961.94 = 157,365.92 : x - Step 2: Convert to fraction form
278,226.99/383,961.94 = 157,365.92/x - Step 3: Cross multiply
278,226.99x = 383,961.94 × 157,365.92 - Step 4: Simplify right side
278,226.99x = 60,422,521,619.86 - Step 5: Solve for x
x = 60,422,521,619.86/278,226.99 - Step 6: Final answer
x = 217,169.88
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.