Finding the Fourth Proportional to 257,799.24, 386,717.36 and 107,888.63
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Solution
The fourth proportional to 257,799.24, 386,717.36 and 107,888.63 is: 161,840.68
Step by Step Solution
- Step 1: Write the proportion equation
257,799.24 : 386,717.36 = 107,888.63 : x - Step 2: Convert to fraction form
257,799.24/386,717.36 = 107,888.63/x - Step 3: Cross multiply
257,799.24x = 386,717.36 × 107,888.63 - Step 4: Simplify right side
257,799.24x = 41,722,403,694.59 - Step 5: Solve for x
x = 41,722,403,694.59/257,799.24 - Step 6: Final answer
x = 161,840.68
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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.