Finding the Fourth Proportional to 278,351.96, 384,125.64 and 157,490.84
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Solution
The fourth proportional to 278,351.96, 384,125.64 and 157,490.84 is: 217,337.32
Step by Step Solution
- Step 1: Write the proportion equation
278,351.96 : 384,125.64 = 157,490.84 : x - Step 2: Convert to fraction form
278,351.96/384,125.64 = 157,490.84/x - Step 3: Cross multiply
278,351.96x = 384,125.64 × 157,490.84 - Step 4: Simplify right side
278,351.96x = 60,496,269,709.14 - Step 5: Solve for x
x = 60,496,269,709.14/278,351.96 - Step 6: Final answer
x = 217,337.32
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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.