Finding the Fourth Proportional to 510,256.25, 765,857.30 and 257,714.09
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Solution
The fourth proportional to 510,256.25, 765,857.30 and 257,714.09 is: 386,809.99
Step by Step Solution
- Step 1: Write the proportion equation
510,256.25 : 765,857.30 = 257,714.09 : x - Step 2: Convert to fraction form
510,256.25/765,857.30 = 257,714.09/x - Step 3: Cross multiply
510,256.25x = 765,857.30 × 257,714.09 - Step 4: Simplify right side
510,256.25x = 197,372,212,021.50 - Step 5: Solve for x
x = 197,372,212,021.50/510,256.25 - Step 6: Final answer
x = 386,809.99
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1.5x scale
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.