Finding the Fourth Proportional to 257,305.74, 354,638.60 and 171,110.65
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Solution
The fourth proportional to 257,305.74, 354,638.60 and 171,110.65 is: 235,837.88
Step by Step Solution
- Step 1: Write the proportion equation
257,305.74 : 354,638.60 = 171,110.65 : x - Step 2: Convert to fraction form
257,305.74/354,638.60 = 171,110.65/x - Step 3: Cross multiply
257,305.74x = 354,638.60 × 171,110.65 - Step 4: Simplify right side
257,305.74x = 60,682,441,361.09 - Step 5: Solve for x
x = 60,682,441,361.09/257,305.74 - Step 6: Final answer
x = 235,837.88
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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.