Finding the Fourth Proportional to 257,144.27, 354,860.11 and 149,788.09
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Solution
The fourth proportional to 257,144.27, 354,860.11 and 149,788.09 is: 206,708.15
Step by Step Solution
- Step 1: Write the proportion equation
257,144.27 : 354,860.11 = 149,788.09 : x - Step 2: Convert to fraction form
257,144.27/354,860.11 = 149,788.09/x - Step 3: Cross multiply
257,144.27x = 354,860.11 × 149,788.09 - Step 4: Simplify right side
257,144.27x = 53,153,817,150.09 - Step 5: Solve for x
x = 53,153,817,150.09/257,144.27 - Step 6: Final answer
x = 206,708.15
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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.